Otolaryngology: Head and Neck Surgery, C70 P586-620 Flashcards
Define:
Anosmia
P586
Inability to smell
Define:
Otorrhea
P586
Fluid discharge from ear
Define:
Dysphagia
P586
Difficulty swallowing
Define:
Odynophagia
P586
Painful swallowing
Define:
Globus
P586
Sensation of a “lump in the throat”
Define:
Otalgia
P586
Ear pain (often referred from throat)
Define:
Trismus
P586
Difficulty opening mouth
ANATOMY
Define the cranial nerves:
I
P586
Olfactory nerve
ANATOMY
Define the cranial nerves:
II
P586
Optic nerve
ANATOMY
Define the cranial nerves:
III
P586
Oculomotor nerve
ANATOMY
Define the cranial nerves:
IV
P586
Trochlear nerve
ANATOMY
Define the cranial nerves:
V
P586
Trigeminal nerve
ANATOMY
Define the cranial nerves:
VI
P586
Abducens nerve
ANATOMY
Define the cranial nerves:
VII
P586
Facial nerve
ANATOMY
Define the cranial nerves:
VIII
P586
Vestibulocochlear nerve
ANATOMY
Define the cranial nerves:
IX
P586
Glossopharyngeal nerve
ANATOMY
Define the cranial nerves:
X
P586
Vagus nerve
ANATOMY
Define the cranial nerves:
XI
P587
Accessory nerve
ANATOMY
Define the cranial nerves:
XII
P587
Hypoglossal nerve
ANATOMY Define motor/sensory actions of the following cranial nerves: I P567
Smell
ANATOMY Define motor/sensory actions of the following cranial nerves: II P567
Sight (sensory pupil reaction)
ANATOMY Define motor/sensory actions of the following cranial nerves: III P567
Eyeball movement, pupil sphincter, ciliary muscle (motor pupil reaction)
ANATOMY Define motor/sensory actions of the following cranial nerves: IV P567
Superior oblique muscle movement
ANATOMY Define motor/sensory actions of the following cranial nerves: V P567
Motor: chewing (masseter muscle)
Sensory: face, teeth, sinuses, cornea
ANATOMY Define motor/sensory actions of the following cranial nerves: VI P567
Lateral rectus muscle (lateral gaze)
ANATOMY Define motor/sensory actions of the following cranial nerves: VII P567
Motor: facial muscles, lacrimal/
sublingual/submandibular glands
Sensory: anterior tongue/soft palate, taste
ANATOMY Define motor/sensory actions of the following cranial nerves: VIII P567
Hearing, positioning
ANATOMY Define motor/sensory actions of the following cranial nerves: IX P567
Motor: stylopharyngeus, parotid, pharynx
Sensory: posterior tongue, pharynx,
middle ear
ANATOMY Define motor/sensory actions of the following cranial nerves: X P567
Motor: vocal cords, heart, bronchus,
GI tract
Sensory: bronchus, heart, GI tract,
larynx, ear
ANATOMY Define motor/sensory actions of the following cranial nerves: XI P567
Motor: trapezius muscle,
sternocleidomastoid muscle
ANATOMY Define motor/sensory actions of the following cranial nerves: XI P567
Motor: tongue, strap muscles (ansa
cervicalis branch)
ANATOMY What are the three divisions of the trigeminal nerve (cranial nerve V)? P587
- Ophthalmic
- Maxillary
- Mandibular
ANATOMY What happens when the hypoglossal nerve (cranial nerve XII) is cut? P588
When the patient sticks out the tongue, it
deviates to the same side as the injury
(wheelbarrow effect)
ANATOMY
Name the duct of the
submandibular gland.
P588
Wharton’s duct
ANATOMY
Name the duct of the
parotid gland.
P588
Stensen’s duct
ANATOMY
What is the source of blood
supply to the nose?
P588
1. Internal carotid artery: anterior and posterior ethmoidal arteries via ophthalmic artery 2. External carotid artery: superior labial artery (via facial artery) and sphenopalatine artery (via internal maxillary artery)
ANATOMY Name the three bones that make up the posterior nasal septum. P588
- Ethmoid (perpendicular plate)
- Vomer (Latin for “plow”)
- Palatine (some also include maxillary
crest)
ANATOMY
Name the seven bones of
the bony eyeball orbit.
P588
- Frontal
- Zygoma
- Maxillary
- Lacrimal
- Ethmoid
- Palatine
- Sphenoid
ANATOMY
Name the four strap muscles.
P588
“TOSS”:
1. Thyrohyoid 2. Omohyoid 3. Sternothyroid 4. Sternohyoid
ANATOMY Which muscle crosses the external and internal carotid arteries? P588
Digastric muscle
ANATOMY
In a neck incision, what is
the first muscle incised?
P588
Platysma
ANATOMY
Which nerve supplies the
strap muscles?
P588
Ansa cervicalis (XII)
ANATOMY
What are the anterior and
posterior neck triangles?
P589 (picture)
Two regions of the neck, divided by the
sternocleidomastoid muscle
ANATOMY
Which nerve runs with the
carotid in the carotid sheath?
P589
Vagus
ANATOMY Which nerve crosses the internal carotid artery at approximately 1 to 2 cm above the bifurcation? P589
Hypoglossal nerve
ANATOMY
Name the three auditory
ossicle bones.
P589
- Malleus (hammer)
- Incus (anvil)
- Stapes (stirrup)
ANATOMY
What comprises the middle
ear?
P589
Eustachian tube, ossicle bones, tympanic
membrane (“ear drum”), mastoid air cell
ANATOMY
What comprises the inner
ear?
P589
Cochlea, semicircular canals, internal
auditory canal
EAR
OTITIS EXTERNA (SWIMMER’S EAR)
What is it?
P589
Generalized infection involving the
external ear canal and often the tympanic
membrane
EAR
OTITIS EXTERNA (SWIMMER’S EAR)
What is the usual cause?
P590
Prolonged water exposure and damaged
squamous epithelium of the ear canal
(e.g., swimming, hearing aid use)
EAR OTITIS EXTERNA (SWIMMER’S EAR) What are the typical pathogens? P590
Most frequently Pseudomonas, may be Proteus, Staphylococcus, occasionally Escherichia coli, fungi (Aspergillus, Candida), or virus (herpes zoster or herpes simplex)
EAR OTITIS EXTERNA (SWIMMER’S EAR) What are the signs/ symptoms? P590
Ear pain (otalgia); swelling of external
ear, ear canal, or both; erythema; pain on
manipulation of the auricle; debris in
canal; otorrhea
EAR
OTITIS EXTERNA (SWIMMER’S EAR)
What is the treatment?
P590
Keep the ear dry; mild infections respond
to cleaning and dilute acetic acid drops;
most infections require complete removal
of all debris and topical antibiotics with or
without hydrocortisone (anti-inflammatory)
EAR
MALIGNANT OTITIS EXTERNA (MOE)
What is it?
P590
Fulminant bacterial otitis externa
EAR
MALIGNANT OTITIS EXTERNA (MOE)
Who is affected?
P590
Most common scenario: elderly patient
with poorly controlled diabetes (other
forms of immunosuppression do not
appear to predispose patients to MOE)
EAR MALIGNANT OTITIS EXTERNA (MOE) What are the causative organisms? P590
Usually Pseudomonas aeruginosa
EAR
MALIGNANT OTITIS EXTERNA (MOE)
What is the classic feature?
P590
Nub of granulation tissue on the floor
of the external ear canal at the
bony–cartilaginous junction
EAR MALIGNANT OTITIS EXTERNA (MOE) What are the other signs/ symptoms? P590
Severe ear pain, excessive purulent
discharge, and usually exposed bone
EAR MALIGNANT OTITIS EXTERNA (MOE) What are the diagnostic tests? P591
1. CT scan: shows erosion of bone, inflammation 2. Technetium-99 scan: temporal bone inflammatory process 3. Gallium-tagged white blood cell scan: to follow and document resolution
EAR
MALIGNANT OTITIS EXTERNA (MOE)
What are the complications?
P591
Invasion of surrounding structures to
produce a cellulitis, osteomyelitis of
temporal bone, mastoiditis; later, a facial
nerve palsy, meningitis, or brain abscess
EAR
MALIGNANT OTITIS EXTERNA (MOE)
What is the treatment?
P591
Control of diabetes, meticulous local care with extensive debridement, hospitalization and IV antibiotics (anti- Pseudomonas: usually an aminoglycoside plus a penicillin)
EAR TUMORS OF THE EXTERNAL EAR What are the most common types? P591
Squamous cell most common; occasionally,
basal cell carcinoma or melanoma
EAR TUMORS OF THE EXTERNAL EAR From what location do they usually arise? P591
Auricle, but occasionally from the
external canal
EAR TUMORS OF THE EXTERNAL EAR What is the associated risk factor? P591
Excessive sun exposure
EAR TUMORS OF THE EXTERNAL EAR What is the treatment of the following conditions: Cancers of the auricle? P591
Usually wedge excision
EAR TUMORS OF THE EXTERNAL EAR What is the treatment of the following conditions: Extension to the canal? P591
May require excision of the external ear
canal or partial temporal bone excision
EAR TUMORS OF THE EXTERNAL EAR What is the treatment of the following conditions: Middle ear involvement? P591
Best treated by en bloc temporal bone
resection and lymph node dissection
EAR
TYMPANIC MEMBRANE (TM) PERFORATION
What is the etiology?
P591
Usually the result of trauma (direct or indirect) or secondary to middle ear infection; often occurs secondary to slap to the side of the head (compression injury), explosions
EAR
TYMPANIC MEMBRANE (TM) PERFORATION
What are the symptoms?
P592
Pain, bleeding from the ear, conductive
hearing loss, tinnitus
EAR
TYMPANIC MEMBRANE (TM) PERFORATION
What are the signs?
P592
Clot in the meatus, visible tear in the TM
EAR
TYMPANIC MEMBRANE (TM) PERFORATION
What is the treatment?
P592
Keep dry; use systemic antibiotics if there
is evidence of infection or contamination
EAR
TYMPANIC MEMBRANE (TM) PERFORATION
What is the prognosis?
P592
Most (90%) heal spontaneously, though
larger perforations may require surgery
(e.g., fat plug, temporalis fascia
tympanoplasty)
EAR
CHOLESTEATOMA
What is it?
P592
Epidermal inclusion cyst of the middle
ear or mastoid, containing desquamated
keratin debris; may be acquired or
congenital
EAR
CHOLESTEATOMA
What are the causes?
P592
Negative middle ear pressure from eustachian tube dysfunction (primary acquired) or direct growth of epithelium through a TM perforation (secondary acquired)
EAR CHOLESTEATOMA What other condition is it often associated with? P592
Chronic middle ear infection
EAR
CHOLESTEATOMA
What is the usual history?
P592
Chronic ear infection with chronic,
malodorous drainage
EAR
CHOLESTEATOMA
What is the appearance?
P592
Grayish-white, shiny keratinous mass
behind or involving the TM; often
described as a “pearly” lesion
EAR CHOLESTEATOMA What are the associated problems? P592
Ossicular erosion, producing conductive hearing loss; also, local invasion resulting in: Vertigo/sensorineural hearing loss Facial paresis/paralysis CNS dysfunction/infection
EAR
CHOLESTEATOMA
What is the treatment?
P592
Surgery (tympanoplasty/mastoidectomy)
aimed at eradication of disease and
reconstruction of the ossicular chain
EAR
BULLOUS MYRINGITIS
What is it?
P593
Vesicular infection of the TM and
adjacent deep canal
EAR BULLOUS MYRINGITIS What are the causative agents? P593
Unknown; viral should be suspected
because of frequent association with viral
URI (in some instances, Mycoplasma
pneumoniae has been cultured)
EAR
BULLOUS MYRINGITIS
What are the symptoms?
P593
Acute, severe ear pain; low-grade fever;
and bloody drainage
EAR BULLOUS MYRINGITIS What are the findings on otoscopic examination? P593
Large, reddish blebs on the TM, wall of
the meatus, or both
EAR
BULLOUS MYRINGITIS
Is hearing affected?
P593
Rarely; occasional reversible sensorineural
loss
EAR
BULLOUS MYRINGITIS
What is the treatment?
P593
Oral antibiotics (erythromycin if
Mycoplasma is suspected); topical
analgesics may be used, with resolution of
symptoms usually occurring in 36 hours
EAR
ACUTE SUPPURATIVE OTITIS MEDIA (OM)
What is it?
P593
Bacterial infection of the middle ear,
often following a viral URI; may be
associated with a middle ear effusion
EAR
ACUTE SUPPURATIVE OTITIS MEDIA (OM)
What is the cause?
P593
Dysfunction of the eustachian tube that
allows bacterial entry from nasopharynx;
often associated with an occluded eustachian
tube, although it is uncertain whether
this is a cause or a result of the infection
EAR ACUTE SUPPURATIVE OTITIS MEDIA (OM) What are the predisposing factors? P593
Young age, male gender, bottle feeding,
crowded living conditions (e.g., day care),
cleft palate, Down’s syndrome, cystic fibrosis
EAR
ACUTE SUPPURATIVE OTITIS MEDIA (OM)
What is the etiology?
P593
1. Streptococcus pneumoniae (33% of cases) 2. Haemophilus influenzae 3. Moraxella catarrhalis 4. Staphylococcus 5. -hemolytic strep 6. Pseudomonas aeruginosa 7. Viral/no culture
EAR ACUTE SUPPURATIVE OTITIS MEDIA (OM) What is the etiology in infants younger than 6 months? P594
- Staphylococcus aureus
- E. coli
- Klebsiella
EAR
ACUTE SUPPURATIVE OTITIS MEDIA (OM)
What are the symptoms?
P594
Otalgia, fever, decreased hearing, infant
pulls on ear, increased irritability; as many
as 25% of patients are asymptomatic
EAR
ACUTE SUPPURATIVE OTITIS MEDIA (OM)
What are the signs?
P594
Early, redness of the TM; later, TM
bulging with loss of the normal landmarks;
finally, impaired TM mobility on pneumatic
otoscopy
EAR ACUTE SUPPURATIVE OTITIS MEDIA (OM) If pain disappears instantly, what may have happened? P594
TM perforation!
EAR
ACUTE SUPPURATIVE OTITIS MEDIA (OM)
What are the complications?
P594
TM perforation, acute mastoiditis, meningitis, brain abscess, extradural abscess, labyrinthitis; if recurrent or chronic, OM may have adverse effects on speech and cognitive development as a result of decreased hearing
EAR
ACUTE SUPPURATIVE OTITIS MEDIA (OM)
What is the treatment?
P594
10-day course of antibiotics; amoxicillin is
the first-line agent; if the patient is allergic
to PCN, trimethoprim-sulfamethoxazole
or erythromycin should be administered
EAR
ACUTE SUPPURATIVE OTITIS MEDIA (OM)
What is the usual course?
P594
Symptoms usually resolve in 24 to 36 hours
EAR ACUTE SUPPURATIVE OTITIS MEDIA (OM) What are the indications for myringotomy and PE tube placement? P594
1. Persistent middle ear effusion over 3 months 2. Debilitated or immunocompromised patient 3. More than three episodes over 6 months (especially if bilateral)
EAR
ACUTE SUPPURATIVE OTITIS MEDIA (OM)
What is a PE tube?
P594
Pneumatic Equalization tube (tube placed
across tympanic membrane)
EAR
ACUTE SUPPURATIVE OTITIS MEDIA (OM)
What is a Bezold’s abscess?
P594
Abscess behind the superior attachment
of the sternocleidomastoid muscle resulting
from extension of a mastoid infection
EAR ACUTE SUPPURATIVE OTITIS MEDIA (OM) What are causes of chronic otitis media? P594
Mixed, S. aureus, P. aeruginosa
EAR ACUTE SUPPURATIVE OTITIS MEDIA (OM) What are the signs/symptoms of chronic otitis media? P595
Otorrhea and hearing loss
EAR
OTOSCLEROSIS
What is it?
P595
Genetic disease characterized by abnormal
spongy and sclerotic bone formation in
the temporal bone around the footplate
of the stapes, thus preventing its normal
movement
EAR OTOSCLEROSIS What is the inheritance pattern? P595
Autosomal dominant with incomplete
one-third penetrance
EAR
OTOSCLEROSIS
What are the symptoms?
P595
Painless, progressive hearing loss (may be
unilateral or bilateral), tinnitus
EAR OTOSCLEROSIS What is the usual age of onset? P595
Second through fourth decade
EAR
OTOSCLEROSIS
How is the diagnosis made?
P595
Normal TM with conductive hearing loss
and no middle-ear effusion (though may
be mixed or even sensorineural if bone of
cochlea is affected)
EAR
OTOSCLEROSIS
What is Schwartze’s sign?
P595
Erythema around the stapes from
hypervascularity of new bone formation
EAR
OTOSCLEROSIS
What is the treatment?
P595
Frequently surgical (stapedectomy with placement of prosthesis), hearing aids, or observation; sodium fluoride may be used if a sensorineural component is present or for preoperative stabilization
MISCELLANEOUS
FACIAL NERVE PARALYSIS
How is the defect localized?
P595
Supranuclear—paralysis of lower face only, forehead muscles are spared because of bilateral corticobulbar supply Intratemporal bone—paralysis of upper and lower face, decreased tearing, altered taste, absent stapedius reflex Distal to stylomastoid foramen—paralysis of facial muscles only
MISCELLANEOUS
FACIAL NERVE PARALYSIS
What are the causes?
P596
Bell’s palsy Trauma Cholesteatoma Tumor (carcinoma, glomus jugulare) Herpes zoster inflammation of geniculate ganglion (Ramsay-Hunt syndrome) Peripheral lesions are usually parotid gland tumors
MISCELLANEOUS FACIAL NERVE PARALYSIS What is the most common cause of bilateral facial nerve palsy? P596
Lyme disease (Borrelia burgdorferi)
MISCELLANEOUS
BELL’S PALSY
What is it?
P596
Sudden onset, unilateral facial weakness
or paralysis in absence of CNS, ear, or
cerebellopontine angle disease (i.e., no
identifiable cause)
MISCELLANEOUS
BELL’S PALSY
What is the clinical course?
P596
Acute onset, with greatest muscle
weakness reached within 3 weeks
MISCELLANEOUS
BELL’S PALSY
What is the incidence?
P596
Most common cause of unilateral facial
weakness/paralysis
MISCELLANEOUS
BELL’S PALSY
What is the pathogenesis?
P596
Unknown; most widely accepted hypothesis
is viral etiology (herpes virus); ischemic and
immunologic factors are also implicated
MISCELLANEOUS BELL’S PALSY What is the common preceding event? P596
URI
MISCELLANEOUS BELL’S PALSY What are the signs/ symptoms? P596
Pathology is related to swelling of the
facial nerve; may present with total facial
paralysis, altered lacrimation, increased
tearing on affected side, change in taste if
region above chorda tympani is affected,
dry mouth, and hyperacusis
MISCELLANEOUS
BELL’S PALSY
What is the treatment?
P596
Usually none is required, as most cases resolve spontaneously in 1 month; protect eye with drops and tape closed as needed; most otolaryngologists advocate steroids and acyclovir Surgical decompression of CN VII is indicated if paralysis progresses or tests indicate deterioration
MISCELLANEOUS
BELL’S PALSY
What is the prognosis?
P597
Overall, 90% of patients recover
completely; if paralysis is incomplete,
95% to 100% will recover without
sequelae
SENSORINEURAL HEARING LOSS
What is it?
P597
Hearing loss from a lesion occurring in
the cochlea or acoustic nerve, rather than
the external or middle ear
SENSORINEURAL HEARING LOSS
What are the symptoms?
P597
Distortion of hearing, impaired speech
discrimination, tinnitus
SENSORINEURAL HEARING LOSS
What are the signs?
P597
Air conduction is better than bone conduction (positive Rinne test), Weber lateralizes to the side without the defect; audiogram most commonly shows greatest loss in high-frequency tones
SENSORINEURAL HEARING LOSS
What is the Weber vs. Rinne
test?
P597
Weber: tuning fork on middle of head
(lateral louder = either ipsilateral
conductive loss or contralateral
sensorineural)
Rinne: tuning fork on mastoid and then
next to ear (conductive loss louder on
mastoid)
SENSORINEURAL HEARING LOSS
What are the causes?
P597
Aging (presbycusis)—leading cause Acoustic injury from sudden or prolonged exposure to loud noises Perilymph fistula Congenital (TORCHES: maternal TOxoplasmosis, Rubella, CMV, HErpes, and Syphilis) Ménière’s disease Drug/toxin-induced Acoustic neuroma Pseudotumor cerebri CNS disease Endocrine disorders Sarcoidosis
SENSORINEURAL HEARING LOSS
What is the most common
cause in children?
P597
Meningitis (bacterial)
SENSORINEURAL HEARING LOSS
What is the treatment?
P598
Treatment of underlying cause, hearing
aids, lip reading, cochlear implant
VERTIGO
What is it?
P598
Sensation of head/body movement, or
movement of surroundings (usually
rotational)
VERTIGO
What is the cause?
P598
Asymmetric neuronal activity between
right and left vestibular systems
VERTIGO
What is the history of
peripheral vertigo?
P598
Severe vertigo, nausea, vomiting, always
accompanied by horizontal or rotatory
nystagmus (fast component almost always
to side opposite disease), other evidence
of inner ear disease (tinnitus, hearing loss)
VERTIGO
What are the risk factors for
peripheral vertigo?
P598
Frequently associated with a previously
operated ear, a chronic draining ear,
barotrauma, or head trauma
VERTIGO
What is the history of central
vertigo?
P598
Found in brainstem or cerebellum:
insidious onset, less intense and more
subtle sensation of vertigo; occasionally,
vertical nystagmus
VERTIGO
What are the steps in
diagnostic evaluation?
P598
Depends on probability of central versus peripheral; careful neurologic and otologic examinations are required May need FTA/VDRL (syphilis), temporal bone scans/CT scan/MRI, ENG, position testing, audiometric testing
VERTIGO
What is the most common
etiology?
P598
Benign Paroxysmal Positional Vertigo
(BPPV); history of brief spells of severe
vertigo with specific head positions
VERTIGO
What is the differential
diagnosis?
P598
Central: vertebral basilar insufficiency (often in older patients with DJD of spine), Wallenberg syndrome, MS, epilepsy, migraine Peripheral: BPPV, motion sickness, syphilis, Ménière’s disease, vestibular neuronitis, labyrinthitis, acoustic neuroma, syphilis, perilymph fistula
VERTIGO
What is Tullio’s
phenomenon?
P599
Induction of vertigo by loud noises;
classically, result of otosyphilis
MÉNIÈRE’S DISEASE
What is it?
P599
Disorder of the membranous labyrinth,
causing fluctuating sensorineural hearing
loss, episodic vertigo, nystagmus, tinnitus,
and aural fullness, N/V
MÉNIÈRE’S DISEASE
What is the classic triad?
P599
Hearing loss, Tinnitus, Vertigo (H, T, V)
MÉNIÈRE’S DISEASE
What is the
pathophysiology?
P599
Obscure, but most experts believe
excessive production/defective resorption
of endolymph
MÉNIÈRE’S DISEASE
What is the medical
treatment?
P599
Salt restriction, diuretics (thiazides),
antinausea agents; occasionally diazepam
is added; 80% of patients respond to
medical management, antihistamines
MÉNIÈRE’S DISEASE
What are the indications for
surgery?
P599
Surgery is offered to those who fail medical
treatment or who have incapacitating
vertigo (60%–80% effective)
MÉNIÈRE’S DISEASE
What are the surgical
options?
P599
1. Shunt from membranous labyrinth to subarachnoid space 2. Vestibular neurectomy 3. Severe cases with hearing loss: labyrinthectomy
GLOMUS TUMORS
What are they?
P599
Benign, slow-growing tumors arising in glomus bodies found in the adventitial layer of blood vessels; often associated with cranial nerves IX and X in the middle ear
GLOMUS TUMORS
What is the usual location?
P599
Middle ear, jugular bulb, course of CN
IX to XII
GLOMUS TUMORS
How common are they?
P599
Most common benign tumor of the
temporal bone
GLOMUS TUMORS
What is the treatment?
P600
Surgical resection, radiation therapy for
poor operative candidates or for
recurrences
NOSE AND PARANASAL SINUSES
EPISTAXIS
What is it?
P600
Bleeding from the nose
NOSE AND PARANASAL SINUSES EPISTAXIS What are the predisposing factors? P600
Trauma, “nose picking,” sinus infection,
allergic or atrophic rhinitis, blood
dyscrasias, tumor, environmental
extremes (hot, dry climates; winters)
NOSE AND PARANASAL SINUSES
EPISTAXIS
What is the usual cause?
P600
Rupture of superficial mucosal blood
vessels (Kiesselbach’s plexus if anterior,
sphenopalatine artery if posterior)
NOSE AND PARANASAL SINUSES EPISTAXIS What is the most common type? P600
Anterior (90%); usually the result of
trauma
NOSE AND PARANASAL SINUSES
EPISTAXIS
Which type is more serious?
P600
Posterior; usually occurs in the elderly or
is associated with a systemic disorder
(hypertension, tumor, arteriosclerosis)
NOSE AND PARANASAL SINUSES
EPISTAXIS
What is the treatment?
P600
Direct pressure; if this fails, proceed to
anterior nasal packing with gauze strips,
followed if necessary by posterior packing
with Foley catheter or lamb’s wool; packs
must be removed in <5 days to prevent
infectious complications
NOSE AND PARANASAL SINUSES EPISTAXIS What is the treatment of last resort? P600
Ligation or embolization of the sphenopalatine artery (posterior) or ethmoidal artery (anterior)
NOSE AND PARANASAL SINUSES EPISTAXIS What infectious disease syndrome is seen with nasal packing? P600
Toxic shock syndrome: fever, shock, rash
caused by exotoxin from Staphylococcus
aureus
NOSE AND PARANASAL SINUSES EPISTAXIS What is the treatment of this syndrome? P600
Supportive with removal of nasal packing,
IV hydration, oxygen, and antistaphylococcal
antibiotics
NOSE AND PARANASAL SINUSES
ACUTE RHINITIS
What is it?
P601
Inflammation of nasal mucous membrane
NOSE AND PARANASAL SINUSES ACUTE RHINITIS What is the most common cause? P601
URI infection; rhinovirus is the most common agent in adults (other nonallergic causes: nasal deformities and tumors, polyps, atrophy, immune diseases, vasomotor problems)
NOSE AND PARANASAL SINUSES
ALLERGIC RHINITIS
What are the symptoms?
P601
Nasal stuffiness; watery rhinorrhea;
paroxysms of morning sneezing; and
itching of nose, conjunctiva, or palate
NOSE AND PARANASAL SINUSES ALLERGIC RHINITIS How is the condition characterized? P601
Early onset (before 20 years of age),
familial tendency, other allergic disorders
(eczema, asthma), elevated serum IgE,
eosinophilia on nasal smear
NOSE AND PARANASAL SINUSES ALLERGIC RHINITIS What are the findings on physical examination? P601
Pale, boggy, bluish nasal turbinates coated with thin, clear secretions; in children, a transverse nasal crease sometimes results from repeated “allergic salute”
NOSE AND PARANASAL SINUSES
ALLERGIC RHINITIS
What is the treatment?
P601
Allergen avoidance, antihistamines, decongestants; steroids or sodium cromylate in severe cases; desensitization via allergen immunotherapy is the only “cure”
NOSE AND PARANASAL SINUSES
ACUTE SINUSITIS
What is the typical history?
P601
Previously healthy patient with
unrelenting progression of a viral URI or
allergic rhinitis beyond the normal 5- to
7-day course
NOSE AND PARANASAL SINUSES
ACUTE SINUSITIS
What are the symptoms?
P601
Periorbital pressure/pain, nasal obstruction,
nasal/postnasal mucopurulent discharge,
fatigue, fever, headache
NOSE AND PARANASAL SINUSES
ACUTE SINUSITIS
What are the signs?
P602
Tenderness over affected sinuses, pus in
the nasal cavity; may also see reason for
obstruction (septal deviation, spur, tight
osteomeatal complex); transillumination
is unreliable
NOSE AND PARANASAL SINUSES
ACUTE SINUSITIS
What is the pathophysiology?
P602
Thought to be secondary to decreased ciliary action of the sinus mucosa and edema causing obstruction of the sinus ostia, lowering intrasinus oxygen tension and predisposing patients to bacterial infection
NOSE AND PARANASAL SINUSES ACUTE SINUSITIS What are the causative organisms? P602
Up to 50% of patients have negative cultures and cause is presumably (initially) viral; pneumococcus, S. aureus, group A streptococci, and H. influenzae are the most common bacteria cultured
NOSE AND PARANASAL SINUSES
ACUTE SINUSITIS
What is the treatment?
P602
14-day course of antibiotics (penicillin G,
amoxicillin, Ceclor®, and Augmentin® are
commonly used), topical and systemic
decongestants, and saline nasal irrigation
NOSE AND PARANASAL SINUSES ACUTE SINUSITIS What is the treatment for fungal sinusitis? P602
Fungal sinusitis is commonly caused by Mucor and seen in immunosuppressed patients; treatment is IV antifungals (e.g., amphotericin or caspofungin) and surgical débridement of all necrotic tissue
NOSE AND PARANASAL SINUSES
CHRONIC SINUSITIS
What is it?
P602
Infection of nasal sinuses lasting longer
than 4 weeks, or pattern of recurrent
acute sinusitis punctuated by brief
asymptomatic periods
NOSE AND PARANASAL SINUSES
CHRONIC SINUSITIS
What is the pathology?
P602
Permanent mucosal changes secondary to inadequately treated acute sinusitis, consisting of mucosal fibrosis, polypoid growth, and inadequate ciliary action, hyperostosi
NOSE AND PARANASAL SINUSES
CHRONIC SINUSITIS
What are the symptoms?
P603
Chronic nasal obstruction, postnasal drip,
mucopurulent rhinorrhea, low-grade
facial and periorbital pressure/pain
NOSE AND PARANASAL SINUSES CHRONIC SINUSITIS What are the causative organisms? P603
Usually anaerobes (such as Bacteroides, Veillonella, Rhinobacterium); also H. influenzae, Streptococcus viridans, Staphylococcus aureus, Staphylococcus epidermidis
NOSE AND PARANASAL SINUSES
CHRONIC SINUSITIS
What is the treatment?
P603
Medical management with decongestants, mucolytics, topical steroids, and antibiotics; if this approach fails, proceed to endoscopic or external surgical intervention
NOSE AND PARANASAL SINUSES
CHRONIC SINUSITIS
What is FESS?
P603
Functional Endoscopic Sinus Surgery
NOSE AND PARANASAL SINUSES CHRONIC SINUSITIS What are the complications of sinusitis? P603
Orbital cellulitis (if ethmoid sinusitis),
meningitis, epidural or brain abscess
(frontal sinus), cavernous sinus thrombosis
(ethmoid or sphenoid), osteomyelitis
(a.k.a. Pott’s puffy tumor if frontal)
NOSE AND PARANASAL SINUSES CANCER OF THE NASAL CAVITY AND PARANASAL SINUSES What are the usual locations? P603
Maxillary sinus (66%)
Nasal cavity
Ethmoid sinus
Rarely in frontal or sphenoid sinuses
NOSE AND PARANASAL SINUSES CANCER OF THE NASAL CAVITY AND PARANASAL SINUSES What are the associated cell types? P603
Squamous cell (80%)
Adenocellular (15%)
Uncommon: sarcoma, melanoma
NOSE AND PARANASAL SINUSES CANCER OF THE NASAL CAVITY AND PARANASAL SINUSES What rare tumor arises from olfactory epithelium? P603
Esthesioneuroblastoma; usually arises
high in the nose (cribriform plate) and is
locally invasive
NOSE AND PARANASAL SINUSES CANCER OF THE NASAL CAVITY AND PARANASAL SINUSES What are the signs/ symptoms? P603
Early—nasal obstruction, blood-tinged mucus, epistaxis Late—localized pain, cranial nerve deficits, facial/palate asymmetry, loose teeth
NOSE AND PARANASAL SINUSES
CANCER OF THE NASAL CAVITY AND PARANASAL SINUSES
How is the diagnosis made?
P604
CT scan can adequately identify extent of
the disease and local invasion; MRI is often
also used to evaluate soft-tissue disease
NOSE AND PARANASAL SINUSES
CANCER OF THE NASAL CAVITY AND PARANASAL SINUSES
What is the treatment?
P604
Surgery with or without x-ray therapy
NOSE AND PARANASAL SINUSES
CANCER OF THE NASAL CAVITY AND PARANASAL SINUSES
What is the prognosis?
P604
5-year survival for T1 or T2 lesions
approaches 70%
NOSE AND PARANASAL SINUSES
JUVENILE NASOPHARYNGEAL ANGIOFIBROMA
What is it?
P604
Most commonly encountered vascular
mass in the nasal cavity; locally aggressive
but nonmetastasizing
NOSE AND PARANASAL SINUSES
JUVENILE NASOPHARYNGEAL ANGIOFIBROMA
What is the usual history?
P604
Adolescent boys who present with nasal
obstruction, recurrent massive epistaxis,
possibly anosmia
NOSE AND PARANASAL SINUSES
JUVENILE NASOPHARYNGEAL ANGIOFIBROMA
What is the usual location?
P604
Site of origin is the roof of the nasal
cavity at the superior margin of
sphenopalatine foramen
NOSE AND PARANASAL SINUSES JUVENILE NASOPHARYNGEAL ANGIOFIBROMA Into what can the mass transform? P604
Fibrosarcoma (rare cases reported)
NOSE AND PARANASAL SINUSES
JUVENILE NASOPHARYNGEAL ANGIOFIBROMA
How is the diagnosis made?
P604
Carotid arteriography, CT scan; biopsy is
contraindicated secondary to risk of
uncontrollable hemorrhage
NOSE AND PARANASAL SINUSES JUVENILE NASOPHARYNGEAL ANGIOFIBROMA What are indications for biopsy? P604
None!
NOSE AND PARANASAL SINUSES
JUVENILE NASOPHARYNGEAL ANGIOFIBROMA
What is the treatment?
P604
Surgery via lateral rhinotomy or sublabial
maxillotomy with bleeding controlled
by internal maxillary artery ligation or
preoperative embolization, in the setting
of hypotensive anesthesia; preoperative
irradiation has also been used to shrink
the tumor
ORAL CAVITY AND PHARYNX PHARYNGOTONSILLITIS What is the common site of referred throat pain P605
EAR
ORAL CAVITY AND PHARYNX
PHARYNGOTONSILLITIS
What is it?
P605
Acute or chronic infection of the nasopharynx or oropharynx and/or Waldeyer’s ring of lymphoid tissue (consisting of palatine, lingual, and pharyngeal tonsils and the adenoids)
ORAL CAVITY AND PHARYNX
PHARYNGOTONSILLITIS
What is the etiology?
P605
Acute attacks can be viral (adenovirus,
enterovirus, coxsackievirus, Epstein-Barr
virus in infectious mononucleosis) or
bacterial (group A -hemolytic streptococci
are the leading bacterial agent); chronic
tonsillitis often with mixed population,
including streptococci, staphylococci, and
M. catarrhalis
ORAL CAVITY AND PHARYNX
PHARYNGOTONSILLITIS
What are the symptoms?
P605
Acute—Sore throat, fever, local lymphadenopathy, chills, headache, malaise Chronic—Noisy mouth breathing, speech and swallowing difficulties, apnea, halitosis
ORAL CAVITY AND PHARYNX
PHARYNGOTONSILLITIS
What are the signs?
P605
Viral—Injected tonsils and pharyngeal
mucosa; exudate may occur, but less
often than with bacterial tonsillitis
Bacterial—Swollen, inflamed tonsils with
white-yellow exudate in crypts and on
surface; cervical adenopathy
ORAL CAVITY AND PHARYNX
PHARYNGOTONSILLITIS
How is the diagnosis made?
P605
CBC, throat culture, Monospot test
ORAL CAVITY AND PHARYNX PHARYNGOTONSILLITIS What are the possible complications? P605
Peritonsillar abscess (quinsy), retropharyngeal abscess (causing airway compromise), rheumatic fever, poststreptococcal glomerulonephritis (with -hemolytic streptococci)
ORAL CAVITY AND PHARYNX
PHARYNGOTONSILLITIS
What is the treatment?
P606
Viral—Symptomatic → acetaminophen, warm saline gargles, anesthetic throat spray Bacterial—10 days PCN (erythromycin if PCN-allergic)
ORAL CAVITY AND PHARYNX PHARYNGOTONSILLITIS What are the indications for tonsillectomy? P606
Sleep apnea/cor pulmonale secondary to airway obstruction, suspicion of malignancy, hypertrophy causing malocclusion, peritonsillar abscess, recurrent acute or chronic tonsillitis
ORAL CAVITY AND PHARYNX PHARYNGOTONSILLITIS What are the possible complications? P606
Acute or delayed hemorrhage
ORAL CAVITY AND PHARYNX
PERITONSILLAR ABSCESS
What is the clinical setting?
P606
Inadequately treated recurrent acute or
chronic tonsillitis
ORAL CAVITY AND PHARYNX
PERITONSILLAR ABSCESS
What is the assoc
P606
Mixed aerobes and anaerobes (which
may be PCN resistant)
ORAL CAVITY AND PHARYNX
PERITONSILLAR ABSCESS
What is the site of formation?
P606
Begins at the superior pole of the tonsil
ORAL CAVITY AND PHARYNX
PERITONSILLAR ABSCESS
What are the symptoms?
P606
Severe throat pain, drooling dysphagia,
odynophagia, trismus, cervical adenopathy,
fever, chills, malaise
ORAL CAVITY AND PHARYNX PERITONSILLAR ABSCESS What is the classic description of voice? P606
“Hot-potato voice”
ORAL CAVITY AND PHARYNX
PERITONSILLAR ABSCESS
What are the signs?
P606
Bulging, erythematous, edematous
tonsillar pillar; swelling of uvula and
displacement to contralateral side
ORAL CAVITY AND PHARYNX
PERITONSILLAR ABSCESS
What is the treatment?
P606
IV antibiotics and surgical evacuation
by incision and drainage; most experts
recommend tonsillectomy after
resolution of inflammatory changes
ORAL CAVITY AND PHARYNX
LUDWIG ANGINA
What is it?
P606
Infection and inflammation of the floor of the mouth (sublingual and submandibular)
ORAL CAVITY AND PHARYNX
LUDWIG ANGINA
What is the source?
P607
Dental infection
ORAL CAVITY AND PHARYNX
LUDWIG ANGINA
What is the treatment?
P607
Antibiotics, emergency airway, I & D
ORAL CAVITY AND PHARYNX
CANCER OF THE ORAL CAVITY
What is the usual cell type?
P607
Squamous cell (90% of cases)
ORAL CAVITY AND PHARYNX CANCER OF THE ORAL CAVITY What are the most common sites? P607
Lip, tongue, floor of mouth, gingiva,
cheek, and palate
ORAL CAVITY AND PHARYNX
CANCER OF THE ORAL CAVITY
What is the etiology?
P607
Linked to smoking, alcohol, and smokeless
tobacco products (alcohol and tobacco
together greatly increase the risk)
ORAL CAVITY AND PHARYNX CANCER OF THE ORAL CAVITY What is the frequency of the following conditions: Regional metastasis? P607
≈30%
ORAL CAVITY AND PHARYNX CANCER OF THE ORAL CAVITY What is the frequency of the following conditions: Second primary? P607
≈25%
ORAL CAVITY AND PHARYNX CANCER OF THE ORAL CAVITY What is the frequency of the following conditions: Nodal metastasis? P607
Depends on size of tumor and ranges
from 10% to 60%, usually to jugular and
jugulodigastric nodes, submandibular
nodes
ORAL CAVITY AND PHARYNX CANCER OF THE ORAL CAVITY What is the frequency of the following conditions: Distant metastasis? P607
Infrequent
ORAL CAVITY AND PHARYNX
CANCER OF THE ORAL CAVITY
How is the diagnosis made?
P607
Full history and physical examination, dental assessment, Panorex or bone scan if mandible is thought to be involved, CT scan/MRI for extent of tumor and nodal disease, FNA (often U/S guided)
ORAL CAVITY AND PHARYNX
CANCER OF THE ORAL CAVITY
What is the treatment?
P607
Radiation, surgery, or both for small lesions; localized lesions can usually be treated surgically; larger lesions require combination therapy, possible mandibulectomy and neck dissection
ORAL CAVITY AND PHARYNX
CANCER OF THE ORAL CAVITY
What is the prognosis?
P608
Depends on stage and site: Tongue: 20% to 70% survival Floor of mouth: 30% to 80% survival Most common cause of death in successfully treated head and neck cancer is development of a second primary (occurs in 20%–40% of cases)
ORAL CAVITY AND PHARYNX SALIVARY GLAND TUMORS What is the frequency of gland involvement? P608
Parotid gland (80%) Submandibular gland (15%) Minor salivary glands (5%)
ORAL CAVITY AND PHARYNX SALIVARY GLAND TUMORS What is the potential for malignancy? P608
Greatest in minor salivary gland tumors (80% are malignant) and least in parotid gland tumors (80% are benign); the smaller the gland, the greater the likelihood of malignancy
ORAL CAVITY AND PHARYNX SALIVARY GLAND TUMORS How do benign and malignant tumors differ in terms of history and physical examination? P608
Benign—mobile, nontender, no node involvement or facial weakness Malignant—painful, fixed mass with evidence of local metastasis and facial paresis/paralysis
ORAL CAVITY AND PHARYNX SALIVARY GLAND TUMORS What is the diagnostic procedure? P608
FNA; never perform excisional biopsy of
a parotid mass; superficial parotidectomy
is the procedure of choice for benign
lesions of the lateral lobe
ORAL CAVITY AND PHARYNX
SALIVARY GLAND TUMORS
What is the treatment?
P608
Involves adequate surgical resection,
sparing facial nerve if possible, neck
dissection for node-positive necks
ORAL CAVITY AND PHARYNX SALIVARY GLAND TUMORS What are the indications for postop XRT? P608
Postoperative radiation therapy if highgrade
cancer, recurrent cancer, residual
disease, invasion of adjacent structures,
any T3 or T4 parotid tumors
ORAL CAVITY AND PHARYNX SALIVARY GLAND TUMORS What is the most common benign salivary tumor? P608
Pleomorphic adenoma (benign mixed tumor) 66% Think: Pleomorphic = Popular
ORAL CAVITY AND PHARYNX
SALIVARY GLAND TUMORS
What is the usual location?
P608
Parotid gland
ORAL CAVITY AND PHARYNX
SALIVARY GLAND TUMORS
What is the clinical course?
P609
They are well delineated and slow
growing
ORAL CAVITY AND PHARYNX SALIVARY GLAND TUMORS What is the second most common benign salivary gland tumor? P609
Warthin’s tumor (1% of all salivary gland
tumors)
ORAL CAVITY AND PHARYNX
SALIVARY GLAND TUMORS
What is the usual location?
P609
95% are found in parotid; 3% are
bilateral
ORAL CAVITY AND PHARYNX
SALIVARY GLAND TUMORS
Describe the lesion.
P609
Slow-growing, cystic mass is usually
located in the tail of the superficial
portion of the parotid; it rarely becomes
malignant
ORAL CAVITY AND PHARYNX SALIVARY GLAND TUMORS What is the most common malignant salivary tumor? P609
Mucoepidermoid carcinoma (10% of all salivary gland neoplasms) Think: Mucoepidermoid = Malignant Most common parotid malignancy Second most common submandibular gland malignancy
ORAL CAVITY AND PHARYNX SALIVARY GLAND TUMORS What is the second most common malignant salivary tumor in adults? P609
Adenoid cystic carcinoma; most common
malignancy in submandibular and minor
salivary glands
ORAL CAVITY AND PHARYNX
LARYNX ANATOMY
Define the three parts.
P609
- Glottis: begins halfway between the
true and false cords (in the ventricle)
and extends inferiorly 1.0 cm below
the edge of the vocal folds - Supraglottis: extends from superior
glottis to superior border of hyoid and
tip of epiglottis - Subglottis: extends from lower border
of glottis to inferior edge of cricoid
cartilage
ORAL CAVITY AND PHARYNX
LARYNX ANATOMY
Innervation?
P610
Vagus nerve: superior laryngeal and recurrent laryngeal nerves; superior laryngeal supplies sensory to supraglottis and motor to inferior constrictor and cricothyroid muscle; recurrent laryngeal supplies sensory to glottis and subglottis and motor to all remaining intrinsic laryngeal muscles
ORAL CAVITY AND PHARYNX
CROUP (LARYNGOTRACHEOBRONCHITIS)
What is it?
P610
Viral infection of the larynx and trachea,
generally affecting children (boys > girls)
ORAL CAVITY AND PHARYNX
CROUP (LARYNGOTRACHEOBRONCHITIS)
What is the usual cause?
P610
Parainfluenza virus
Think: crouP = Parainfluenza
ORAL CAVITY AND PHARYNX CROUP (LARYNGOTRACHEOBRONCHITIS) What age group is affected most? P610
6 months to 3 years of age
ORAL CAVITY AND PHARYNX CROUP (LARYNGOTRACHEOBRONCHITIS) Is the condition considered seasonal? P610
Yes; outbreaks most often occur in
autumn
ORAL CAVITY AND PHARYNX CROUP (LARYNGOTRACHEOBRONCHITIS) What are the precipitating events? P610
Usually preceded by URI
ORAL CAVITY AND PHARYNX
CROUP (LARYNGOTRACHEOBRONCHITIS)
What is the classic symptom?
P610
Barking (seal-like), nonproductive cough
ORAL CAVITY AND PHARYNX CROUP (LARYNGOTRACHEOBRONCHITIS) What are the other symptoms? P610
Respiratory distress, low-grade fever
ORAL CAVITY AND PHARYNX
CROUP (LARYNGOTRACHEOBRONCHITIS)
What are the signs?
P610
Tachypnea, inspiratory retractions,
prolonged inspiration, inspiratory stridor,
expiratory rhonchi/wheezes
ORAL CAVITY AND PHARYNX CROUP (LARYNGOTRACHEOBRONCHITIS) What is the differential diagnosis? P610
Epiglottitis, bacterial tracheitis, foreign
body, diphtheria, retropharyngeal
abscess, peritonsillar abscess, asthma
ORAL CAVITY AND PHARYNX
CROUP (LARYNGOTRACHEOBRONCHITIS)
How is the diagnosis made?
P610
A-P neck x-ray shows classic “steeple sign,”
indicating subglottic narrowing; ABG
may show hypoxemia plus hypercapnia
ORAL CAVITY AND PHARYNX
CROUP (LARYNGOTRACHEOBRONCHITIS)
What is the treatment?
P611
Keep child calm (agitation only worsens
obstruction); cool mist; steroids; aerosolized
racemic EPI may be administered to
reduce edema/airway obstruction
ORAL CAVITY AND PHARYNX CROUP (LARYNGOTRACHEOBRONCHITIS) What are the indications for intubation? P611
If airway obstruction is severe or child
becomes exhausted
ORAL CAVITY AND PHARYNX
CROUP (LARYNGOTRACHEOBRONCHITIS)
What is the usual course?
P611
Resolves in 3 to 4 days
ORAL CAVITY AND PHARYNX CROUP (LARYNGOTRACHEOBRONCHITIS) What type of secondary infection occurs? P611
Secondary bacterial infection
streptococcal, staphylococcal
ORAL CAVITY AND PHARYNX
EPIGLOTTITIS
What is it?
P611
Severe, rapidly progressive infection of
the epiglottis
ORAL CAVITY AND PHARYNX EPIGLOTTITIS What is the usual causative agent? P611
Haemophilus influenzae type B
ORAL CAVITY AND PHARYNX
EPIGLOTTITIS
What age group is affected?
P611
Children 2 to 5 years of age
ORAL CAVITY AND PHARYNX EPIGLOTTITIS What are the signs/ symptoms? P611
Sudden onset, high fever (40C); “hot-potato” voice; dysphagia (Sudden onset, high fever (40C); “hot-potato” voice; dysphagia ( → drooling); no cough; patient prefers to sit upright, lean forward; patient appears toxic and stridulous
ORAL CAVITY AND PHARYNX
EPIGLOTTITIS
How is the diagnosis made?
P611
Can usually be made clinically and does
not involve direct observation of the
epiglottis (which may worsen obstruction
by causing laryngospasm)
ORAL CAVITY AND PHARYNX
EPIGLOTTITIS
What is the treatment?
P611
Involves immediate airway support in the
O.R.: intubation or possibly tracheostomy,
medical treatment is comprised of steroids
and IV antibiotics against H. influenzae
ORAL CAVITY AND PHARYNX
MALIGNANT LESIONS OF THE LARYNX
What is the incidence?
P611
Accounts for ≈2% of all malignancies,
more often in males
ORAL CAVITY AND PHARYNX MALIGNANT LESIONS OF THE LARYNX What is the most common site? P611
Glottis (66%)
ORAL CAVITY AND PHARYNX MALIGNANT LESIONS OF THE LARYNX What is the second most common type? P612
Supraglottis (33%)
ORAL CAVITY AND PHARYNX MALIGNANT LESIONS OF THE LARYNX Which type has the worst prognosis? P612
Subglottic tumors (infrequent)
ORAL CAVITY AND PHARYNX
MALIGNANT LESIONS OF THE LARYNX
What are the risk factors?
P612
Tobacco, alcohol
ORAL CAVITY AND PHARYNX
MALIGNANT LESIONS OF THE LARYNX
What is the pathology?
P612
90% are squamous cell carcinoma
ORAL CAVITY AND PHARYNX
MALIGNANT LESIONS OF THE LARYNX
What are the symptoms?
P612
Hoarseness, throat pain, dysphagia,
odynophagia, neck mass, (referred)
ear pain
ORAL CAVITY AND PHARYNX
SUPRAGLOTTIC LESIONS
What is the usual location?
P612
Laryngeal surface of epiglottis
ORAL CAVITY AND PHARYNX
SUPRAGLOTTIC LESIONS
What area is often involved?
P612
Pre-epiglottic space
ORAL CAVITY AND PHARYNX
SUPRAGLOTTIC LESIONS
Extension?
P612
Tend to remain confined to supraglottic
region, though may extend to vallecula or
base of tongue
ORAL CAVITY AND PHARYNX SUPRAGLOTTIC LESIONS What is the associated type of metastasis? P612
High propensity for nodal metastasis
ORAL CAVITY AND PHARYNX
SUPRAGLOTTIC LESIONS
What is the treatment?
P612
Early stage = XRT
Late stage = laryngectomy
ORAL CAVITY AND PHARYNX
GLOTTIC LESIONS
What is the usual location?
P612
Anterior part of true cords
ORAL CAVITY AND PHARYNX
GLOTTIC LESIONS
Extension?
P612
May invade thyroid cartilage, cross
midline to invade contralateral cord, or
invade paraglottic space
ORAL CAVITY AND PHARYNX GLOTTIC LESIONS What is the associated type of metastasis? P612
Rare nodal metastasis
ORAL CAVITY AND PHARYNX
GLOTTIC LESIONS
What is the treatment?
P612
Early stage = XRT
Late stage = laryngectomy
ORAL CAVITY AND PHARYNX NECK MASS What is the usual etiology in infants? P613
Congenital (branchial cleft cysts,
thyroglossal duct cysts)
ORAL CAVITY AND PHARYNX NECK MASS What is the usual etiology in adolescents? P613
Inflammatory (cervical adenitis is #1),
with congenital also possible
ORAL CAVITY AND PHARYNX NECK MASS What is the usual etiology in adults? P613
Malignancy (squamous is #1), especially
if painless and immobile
ORAL CAVITY AND PHARYNX
NECK MASS
What is the “80% rule”?
P613
In general, 80% of neck masses are
benign in children; 80% are malignant
in adults older than 40 years of age
ORAL CAVITY AND PHARYNX NECK MASS What are the seven cardinal symptoms of neck masses? P613
Dysphagia, odynophagia, hoarseness,
stridor (signifies upper airway obstruction),
globus, speech disorder, referred ear pain
(via CN V, IX, or X)
ORAL CAVITY AND PHARYNX
NECK MASS
What comprises the workup?
P613
Full head and neck examination, indirect laryngoscopy, CT scan and MRI, FNA for tissue diagnosis; biopsy contraindicated because it may adversely affect survival if malignant
ORAL CAVITY AND PHARYNX NECK MASS What is the differential diagnosis? P613
Inflammatory: cervical lymphadenitis,
cat-scratch disease, infectious
mononucleosis, infection in neck
spaces
Congenital: thyroglossal duct cyst (midline,
elevates with tongue protrusion),
branchial cleft cysts (lateral), dermoid
cysts (midline submental), hemangioma,
cystic hygroma
Neoplastic: primary or metastatic
ORAL CAVITY AND PHARYNX NECK MASS What is the workup of node-positive squamous cell carcinoma and no primary site? P613
Triple endoscopy (laryngoscopy,
esophagoscopy, bronchoscopy) and
blind biopsies
ORAL CAVITY AND PHARYNX
NECK MASS
What is the treatment?
P613
Surgical excision for congenital or
neoplastic; two most important
procedures for cancer treatment are
radical and modified neck dissection
ORAL CAVITY AND PHARYNX NECK MASS What is the role of adjuvant treatment in head and neck cancer? P614
Postoperative chemotherapy/XRT
ORAL CAVITY AND PHARYNX
RADICAL NECK DISSECTION
What is involved?
P614
Classically, removal of nodes from clavicle to mandible, sternocleidomastoid muscle, submandibular gland, tail of parotid, internal jugular vein, digastric muscles, stylohyoid and omohyoid muscles, fascia within the anterior and posterior triangles, CN XI, and cervical plexus sensory nerves
ORAL CAVITY AND PHARYNX
RADICAL NECK DISSECTION
What are the indications?
P614
- Clinically positive nodes that likely
contain metastatic cancer - Clinically negative nodes in neck, but
high probability of metastasis from a
primary tumor elsewhere - Fixed cervical mass that is resectable
ORAL CAVITY AND PHARYNX RADICAL NECK DISSECTION What are the contraindications? P614
- Distant metastasis
- Fixation to structure that cannot be
removed (e.g., carotid artery) - Low neck masses
ORAL CAVITY AND PHARYNX MODIFIED NECK DISSECTION What are the types: Type I? P614
Spinal accessory nerve preserved
ORAL CAVITY AND PHARYNX MODIFIED NECK DISSECTION What are the types: Type II? P614
Spinal accessory and internal jugular vein
preserved
ORAL CAVITY AND PHARYNX MODIFIED NECK DISSECTION What are the types: Type III? P614
Spinal accessory, IJ, and
sternocleidomastoid nerves preserved
ORAL CAVITY AND PHARYNX
MODIFIED NECK DISSECTION
What are the advantages?
P614
Increased postoperative function and decreased morbidity (especially if bilateral), most often used in NO lesions; these modifications are usually intraoperative decisions based on the location and extent of tumor growth
ORAL CAVITY AND PHARYNX
MODIFIED NECK DISSECTION
What are the disadvantages?
P615
May result in increased mortality from
local recurrence
FACIAL FRACTURES
MANDIBLE FRACTURES
What are the symptoms?
P615
Gross disfigurement, pain, malocclusion,
drooling
FACIAL FRACTURES
MANDIBLE FRACTURES
What are the signs?
P615
Trismus, fragment mobility and
lacerations of gingiva, hematoma in floor
of mouth
FACIAL FRACTURES MANDIBLE FRACTURES What are the possible complications? P615
Malunion, nonunion, osteomyelitis, TMJ
ankylosis
FACIAL FRACTURES
MANDIBLE FRACTURES
What is the treatment?
P615
Open or closed reduction
MMF = MaxilloMandibular Fixation
(wire jaw shut)
FACIAL FRACTURES
MIDFACE FRACTURES
How are they evaluated?
P615
Careful physical examination and CT scan
FACIAL FRACTURES MIDFACE FRACTURES Classification Le Fort I? P615 (picture)
Transverse maxillary fracture above the
dental apices, which also traverses the
pterygoid plate; palate is mobile, but
nasal complex is stable
FACIAL FRACTURES MIDFACE FRACTURES Classification Le Fort II? P616 (picture)
Fracture through the frontal process of
the maxilla, through the orbital floor and
pterygoid plate; midface is mobile
FACIAL FRACTURES MIDFACE FRACTURES Classification Le Fort III? P616 (picture)
Complete craniofacial separation;
differs from II in that it extends through
the nasofrontal suture and frontozygomatic
sutures
FACIAL FRACTURES MIDFACE FRACTURES Classification What is a “tripod” fracture? P616 (picture)
Fracture of the zygomatic complex; involves four fractures: 1. Frontozygomatic suture 2. Inferior orbital rim 3. Zygomaticomaxillary suture 4. Zygomaticotemporal suture
FACIAL FRACTURES
MIDFACE FRACTURES
What is a “blowout” fracture?
P617
Orbital fracture with “blowout” of
supporting bony structural support of
orbital floor; patient has enophthalmos
(sunken-in eyeball)
FACIAL FRACTURES
MIDFACE FRACTURES
What is “entrapment”?
P617
Orbital fracture with “entrapment” of periorbital tissues within the fracture opening, including entrapment of extraocular muscles; loss of extraocular muscle mobility (e.g., lateral tracking) and diplopia (double vision)
FACIAL FRACTURES
MIDFACE FRACTURES
What is a “step off”?
P617
Fracture of the orbit with palpable
“step off” of bony orbital rim (inferior
or lateral)
FACIAL FRACTURES MIDFACE FRACTURES Are mandibular fractures usually a single fracture? P617
No; because the mandible forms an
anatomic ring, >95% of mandible
fractures have more than one fracture
site
FACIAL FRACTURES MIDFACE FRACTURES What is the best x-ray study for mandibular fractures? P617
Panorex
FACIAL FRACTURES MIDFACE FRACTURES What must be ruled out and treated with a broken nose (nasal fracture)? P617
Septal hematoma; must drain to remove
chance of pressure-induced septal necrosis
ENTWARD QUESTIONS How can otitis externa be distinguished from otitis media on examination? P617
Otitis externa is characterized by severe
pain upon manipulation of the auricle
ENTWARD QUESTIONS
What causes otitis media?
P617
Most cases are caused by pneumococci
and H. influenzae
ENTWARD QUESTIONS
What causes otitis externa?
P617
Pseudomonas aeruginosa
ENTWARD QUESTIONS
What must be considered in
unilateral serous otitis?
P617
Nasopharyngeal carcinoma
ENTWARD QUESTIONS
What is the most common
cause of facial paralysis?
P617
Bell’s palsy, which has an unidentified
etiology
ENTWARD QUESTIONS What is the single most important prognostic factor in Bell’s palsy? P618
Whether the affected muscles are
completely paralyzed (if not, prognosis is
>95% complete recovery)
ENTWARD QUESTIONS
What is the most common
cause of parotid swelling?
P618
Mumps
ENTWARD QUESTIONS
What is Heerfordt’s
syndrome?
P618
Sarcoidosis with parotid enlargement,
facial nerve paralysis, and uveitis
ENTWARD QUESTIONS
Which systemic disease
causes salivary gland stones?
P618
Gout
ENTWARD QUESTIONS What is the most common salivary gland site of stone formation? P618
Submandibular gland
ENTWARD QUESTIONS
What is Mikulicz’s
syndrome?
P618
Any cause of bilateral enlargement of the
parotid, lacrimal, and submandibular glands
ENTWARD QUESTIONS
What are the three major
functions of the larynx?
P618
- Airway protection
- Airway/respiration
- Phonation
ENTWARD QUESTIONS
What is a cricothyroidotomy?
P618
Emergent surgical airway by incising the
cricothyroid membrane
ENTWARD QUESTIONS Name the four major indications for a tracheostomy. P618
1. Prolonged mechanical ventilation (usually 2 weeks) 2. Upper airway obstruction 3. Poor life-threatening pulmonary toilet 4. Severe obstructive sleep apnea
ENTWARD QUESTIONS
What is a ranula?
P618
Sublingual retention cyst arising from
sublingual salivary glands
ENTWARD QUESTIONS
What is Frey’s syndrome?
P618
Flushing, pain, and diaphoresis in the
auriculotemporal nerve distribution
initiated by chewing
ENTWARD QUESTIONS
What causes Frey’s
syndrome?
P618
Cutting the auriculotemporal nerve causes abnormal regeneration of the sympathetic/parasympathetic nerves, which, once destined for the parotid gland, find new targets in skin sweat glands; thus, people sweat when eating
ENTWARD QUESTIONS
What is the classic triad of
Ménière’s disease?
P619
Hearing loss, tinnitus, vertigo (HTV)
ENTWARD QUESTIONS What is the most common posterior fossa tumor and where is it located? P619
Acoustic neuroma, usually occurring at
the cerebellopontine angle
ENTWARD QUESTIONS
What is the most common
site of sinus cancer?
P619
Maxillary sinus
ENTWARD QUESTIONS
What tumor arises from
olfactory epithelium?
P619
Esthesioneuroblastoma
ENTWARD QUESTIONS What cell type is most common in head and neck cancer? P619
Squamous cell
ENTWARD QUESTIONS What are the most important predisposing factors to head and neck cancer? P619
Excessive alcohol use and tobacco abuse
of any form
ENTWARD QUESTIONS
What is the most frequent
site of salivary gland tumor?
P619
Parotid gland
ENTWARD QUESTIONS What is the most common salivary gland neoplasm: Benign? P619
Pleomorphic adenoma
ENTWARD QUESTIONS What is the most common salivary gland neoplasm: Malignant? P619
Mucoepidermoid carcinoma
ENTWARD QUESTIONS
What is the classic feature of
croup?
P619
Barking, seal-like cough
ENTWARD QUESTIONS
What are the classic features
of epiglottitis?
P619
“Hot-potato” voice, sitting up, drooling,
toxic appearance, high fever, leaning
forward
ENTWARD QUESTIONS
What comprises the workup
of neck mass?
P619
Do not biopsy; obtain tissue via FNA
and complete head and neck examination
ENTWARD QUESTIONS
What is Ramsay-Hunt
syndrome?
P620
Painful facial nerve paralysis from herpes
zoster of the ear
ENTWARD QUESTIONS What is the most common malignant neck mass in children, adolescents, and young adults? P620
Lymphoma
ENTWARD QUESTIONS What is the most common primary malignant solid tumor of the head and neck in children? P620
Rhabdomyosarcoma
ENTWARD QUESTIONS
Throat pain is often referred
to what body area?
P620
Ear
ENTWARD QUESTIONS What ENT condition is described as “crocodile tears”? P620
Frey’s syndrome!
ENTWARD QUESTIONS
What is Brown’s sign?
P620
Tympanic membrane pulsations that
cease with positive pressure (from a
“pneumatic” otoscope); seen with middle
ear tumor mass
RAPID-FIRE REVIEW OF MOST COMMON CAUSES
OF ENT INFECTIONS
Croup?
P620
Parainfluenza virus
RAPID-FIRE REVIEW OF MOST COMMON CAUSES
OF ENT INFECTIONS
Otitis externa?
P620
Pseudomonas
RAPID-FIRE REVIEW OF MOST COMMON CAUSES
OF ENT INFECTIONS
Epiglottitis?
P620
H. influenzae
RAPID-FIRE REVIEW OF MOST COMMON CAUSES
OF ENT INFECTIONS
Malignant otitis externa?
P620
Pseudomonas
RAPID-FIRE REVIEW OF MOST COMMON CAUSES
OF ENT INFECTIONS
Parotitis?
P620
Staphylococcus
RAPID-FIRE REVIEW OF MOST COMMON CAUSES OF ENT INFECTIONS Acute suppurative otitis media? P620
S. pneumoniae (33%)