BoardVitals2 Flashcards
What viral infection are inverted papillomas associated with?
HPV 6, 11, 16, 18
**16 and 18 carry higher risk of malignant transformation
What are the most common superficial peels?
10-25% TCA
Jessner’s (resorcinol, ethanol, salicyclic acid,
40-70% glycolic acid
5-15% salicylic acid
How long should patients be off isotretionoin prior to dermabrasion?
6 mo
What is the MC malignancy of the submandibular and minor salivary glands?
Adenoid cystic carincoma
What part of the ossicular chain has the most fragile blood supply and is often necrosed in cholesteatomas
Long process of the incus
What is glucagon useful in anaphylaxis?
Increases cardiac output
Increased HR
What does the ultimobranchial body give rise to?
Part of the 4th branchial pouch and gives rise to calcitonin-producing parafollicular cells
**medullary thyroid carcinoma arises from these cells
What is upper airway resistance syndrome?
Have the same sx as OSA
Normal AHI <5
Elevated RERAS
CPAP is first line therapy
What is the innervation of the diagastric
Anterior belly: CN V
Posterior belly: CN VII
How many minutes after sleep onset is the first REM cycle?
90 min
Where do most acoustic neuromas arise?
Obersteiner-Redlich zone: zone located within the porus region of the IAC, representing the transition point of central and peripheral myelin
**typically arise here and protrude medially towards the CPA
How long should one wait after medialization laryngoplasty before repeat intubation?
6 mo
What scan is positive in malignant OE and will remain indefinitely positive?
Technetium bone scan, as it identifies increased osteogenic bone activity characteristic of MOE
What is the MOA of cocaine?
Inhibits the reuptake of serotonin, norepinephrine, and dopaime
What is the surgical treatment of choice for nonallergic rhinitis that does not respond to medical therapy and in which no anatomic abnormality can be found?
Vidian neurectomy: supplies the parasympathetic innervation to much of the nasal mucosa, formed by the greater superficial and deep petrosal nerves
What is the MOA of aselastine?
Second generation H1 antagonist
What are the MRI findings of cholesteatoma on T1 vs T2
Hypointense on T1
Hyperintense on T2
What syndrome is characterized by episodic vertigo, interstitial keratitis, and bilateral fluctuating SNHL, usually presenting in the 20s-30s
Cogan syndrome
Tx with high dose steroids and possibly immunosuppressants
What are the Kuhn types of frontal cells?
I: Single cell above the agger nasi
II: 2 or more cells superior to the agger nasi
III: single cell extenindg from the agger cell into the frontal sinus
IV: isolated cell within the frontal sinus
What is a “marginal” laryngeal tumor
Located on the AE fold, marginal as it could be classified as a laryngeal or hypopharyngeal cancer – have a higher rate of basaloid varient of SCC and a more aggressive behavior
What is a normal AHI in children?
0 events/hr, anything higher is abnormal
What is the difference between botox types A and B?
Type A is the MC type used
Type B acts more quickly, wears off more quickly, and can be used in patient who develop type A tolerance
What is the MC cardiac abnormality seen in OSA?
Sinus bradycardia
What is seen in orbital apex syndrome
Diplopia, proptosis, mydriasis, decreased visual acuity
CN II, III, IV, and VI affected
What is Hitselberger’s sign
Hypesthesia of the posterior canal wall and concha due to compression of the facial nerve, usually seen with AN
What is Gradenigo’s triad?
Retroorbital pain
Otorrhea
Abducens palsy
** due to petrous apicitis
What is Heerfordt syndrome
Rare manifestation of sarcoidosis involving uveitis, swelling of the parotitis, chronic fever, facial nerve palsy
What are the indications for surgical management of hyperparathyroidism?
- Serum Ca over 1.0 mg/dL above the upper limit of normal
- Cr clearance reduced by more than 30% for age
- Patient younger than 50
- Measurement of 24 hr urinary Ca is over 400 mg/dL
- Bone mineral density is reduced by more than 2.5 standard deviations
What findings suggest acute coalescent mastoiditis?
- Fluid in the mastoid cavity with bony erosion
- Subperiosteal abscess
- Mastoid tenderness or erythema
- Proptosis of the auricle
- Retroauricular fluctuance
- Ear drainage
What part of the nasal septum is the ascending pharyngeal artery associated with?
Woodruffs plexus – common location of posterior bleeds
What is associated with low CSF hypocretin?
Narcolepsy
The round window represents the end of what structure?
Scala tympani: lower component of the cochlea
What test can be used to assess for agreement between two interventions
Chi squared
What test can be used to compare continuous date from a single group
T test
What patients with rhabdomyosarcoma have a worse prognosis
Children 1-9 yo
Alveolar subtype
Which form of BCC has the worst prognosis?
Morpheaform/sclerosing: appears as a white or pink plaque, associated with unpredictable arms of tumor cells branching from the main lesions
What is the only lesions of the temporal bone that will be hyperintense on both T1 and T2
Cholesterol granuloma
What are the cut-offs for mild, moderate, and severe OSA?
Mild: AHI 0-15
Moderate: AHI 15-30
Severe: AHI >30
What is dysphagia lusoria?
Stridor w exertion and FTT associated with apparent RIGHT subclavian artery
At what point to wounds reach 80% of tensile strength?
3 mo
How far apart are mustarde sutures placed?
16mm
**need to place at least 3, permanent horizontal mattress
What is a normal MRD
3-4.5 mm (between the lid margin and the light reflex)
Difference between MRD 1 and 2
i is measurement from the upper lid
2 from lower lid
MC lab to be positive in the setting of Wegners
c-ANCA
How should laser resurfacing and botox be staged?
Botox first, laser 2 weeks later
** relaxation of the underlying facial musculature facilitated by botox allows enhanced results of laser
How long prior to RAI do synthroid and cytomel need to be stopped
Cytomel : 2 weeks
Synthroid : 6 weeks
80% of the time, where does the uncinate process attach?
Lamina papyracea–
Frontal sinus will drain medial to the uncinate
The other 20% of the time, the uncinate attaches to the skullbase or the middle turbinate
Where should parietal bone grafts be obtained from?
2 cm lateral to the sagital suture over the parietal bone, which avoids the sagittal sinus
What pathogen is rhinophyma associated with
Demodex folliculorum
Where can the frontal branch of the facial nerve be found on endoscopic brow lift
On the undersurface of the temporoparietal fascia
What is the aplasia where the bony labyrinth is well formed but the organ of Corti is poorly differentiated with a poorly formed tectorial membrane and a collpsed Reissner’s membrane?
Scheibe aplasia
What is the aplasia where there is compete agenesis of the petrous portion of the temporal bone, thought to be 2/2 insult prior to wk 3 of devo
Michel aplasia
Which NSAID should not be given for more than 5 consecutive days?
Ketorolac
What is the blood supply to the temporalis muscle?
Anterior and posterior branches of the deep temporal artery which are branches off the second portion of the internal maxillary arter
What are the OSHA noise exposure regulations?
<8 hr 90dB
<2 hr 100dB
<30min 110dB
**every increase in 5 dB halves the exposure time
What % of otosclerosis cases have a hereditary basis?
70% (AD disease)
What is paracusis of willis?
Classic finding of otosclerosis where patients can hear better in noisy environments
When is chemotherapy recommended in addition to radiation treatment for oropharyngeal cancer?
When there are positive margins, ENE, or distant mets
In parathyroidectomy, degradation of the serum PTH that exceeds __% of the preexicion level confirms removal of hyperfunctioning tissue
40%
What is the primary parasympathetic neurotransmitter of the nose and leads to vasodilation
ACh
In what % of patients is the carotid artery dehiscent in the sphenoid?
23%
What is first line tx for keloids
Triamcinolone (kenalog) injection
Inhibits fibroblast activity and collagen synthesis and increased collagenase production
What is the SMAS continuous with on the face?
Temporoparietal fascia (frontal branch can be found here) Galea
What is the second MC form of hypogammaglobulimemia and results from a failure of B call maturation, leading to recurrent URI
Common variable immunodeficiency
What presents with a triad of thrombocytopenia, eczema, and recurrent sinopulmonary infections and is associated with IgM deficiency, affecting B and T cells
Wiskott-Aldrich
Where is nasal skin the thinnest?
Rhinion: intersection of the nasal bones and the ULCs
What will be seen on CT chest in the setting of RRP
Peripheral nodules that show central cavitation and air-fluid levels
What nerve supplies sensation to the nasal tip?
External nasal branch of the anterior ethmoid nerve
What lower lid incision has the highest risk for ectropion
Subciliary
What syndrome presents with abnormal thyroid hormone metabolism, goiter, congenital SNHL, and positive perchlorate test
Pendred
Adenoid cystic carcinoma is associated with deposition of what substance
Amyloid
Distance from the lacrimal crest to the anterior ethmoid
24 mm
Distance from the lacrimal crest to the posterior ethmoid foramen
36
Distance from the lacrimal crest to the midpoint of the optic foramen
42
What is the definition of CPAP compliance
CPAP for more than 4 hr a night for 5 nights a week
What is Ohngren’s line
Angle of the mandible to the medial canthus, delinates tumors in the superior portion of the paranasal sinuses that have increased predisposition to invade the skull base, therefore poor prognosis
What are vertical glabellar lines caused by? Horizontal?
Vertical: corrugator
Horizontal: procerus
What canal is most commonly eroded by cholesteatoma?
Horizontal SCC
What is the characteristic appearance of acoustic neuroma on MRI?
T1: Iso or hypointense
T2: Heterogenously hyperintense
Marked enhancement with contrast
What is the only nasal spray that is approved for use in rhinitis of pregnancy
Budesonide
What is a cyst that arises from a pharyngeal notochord remnant in the nasopharynx and is surrounded by adenoid tissue
Thornwaldt’s cyst
Are inferiorly or superiorly based flaps more likely to develop trap door deformities?
Superiorly, 2/2 lymphatic flow
What is the malformation limited to the membranous portion of the pars inferior that is the most commonly observed T bone dysplasia in cases of congenital profound SNHL
Scheibe aplasia
Blood supply to the SCM (3 parts)
Upper: Occipital
Middle: Superior thyroid
Lower: Suprascapular
What is the most consistent laboratory finding in vestibular neuritis?
Reduction or caloric response
What is the treatment of vestibular neuritis?
Methylprednisolone
**no indication for valacyclovir
Roll of the false vocal folds or vestibular folds
Airway protection
Expected functional limitation of donor site after free flap reconstruction
Limitation of eversion
The anterior ethmoid artery is always seen between what two lamellae?
2nd: bulla
3rd: basal lamella
What is OK-432 and what is it used to treat?
Picibanil, comes from strep pyogenes treated with benzylpenicillin
Used as a sclerosing agent for lymphatic malformations (macrocystic has the best response)
Lid elevation via botox injection is best achieved via injection of what structure
Crows feet–lateral orbicularis
Which petrous apex lesion is hyper intense on both T1 and T2?
Cholesterol granulomas
How can a petrous apex lesion can be diagnosed as a cholesterol granuloma vs cholesteatoma?
CG: T1 and T2 hyperintense
Ctoma: Hypointense T1, hyperintense T2
What are the most notable allergens in spring, summer, and fall?
Spring: Trees
Summer: Grasses
Fall: Weeds
What is the only instance you’d see a non-recurrent left laryngeal nerve?
Situs inversus
What is the most likely cause of a nonrecurrent R laryngeal nerve
Retroesophageal R subclavian artery–usually RLN pulled by the R subclavian artery during development
Where is the Killian triangle?
Between the inferior constrictor and the cricopharyngeus
What are the two less common sites of diverticula aside from the Killian triangle?
Inferiorly: Larimer triangle, between the cricopharyngeus and the superior esophageal circular muscle
Laterally: Killian Jamieson, between the oblique and transverse fibers of the CPM
Hillocks of his derivatives:
1: Tragus
2: Helical crus
3: Helix
4: Antihelix
5: Antitragus
6: Lobule
Triad of Gradenigo’s syndrome
Abducens palsy (CN VI), retroorbital pain, and otorrhea
What is the role of E6 in HPV?
Binds and leads to degradation of p53 tumor suppressor gene product
What is mitomycin derived from and what is the MOA?
Streptomyces caespitosus
Alkylating agent to inhibit DNA synthesis
What voice condition often improves with benzos or other sedatives
Spasmotic dysphonia
Timeframe for imbibition, inosculation, and angiogenesis
Imbibition: first 24-48 hr
Inosculation: 48 hr - 4 days
Angiogenesis: 4-7 dars
What type of HSV is associated with kaposi sarcoma?
HSV8
What complication is most likely to be seen in a fracture o the T bone running through the geniculate ganglion of the facial nerve
Dry eye
Geniculate ganglion gives of the GSPN which contains parasympathetic innervation to the lacrimal gland
T staging for nasopharyneal carcinoma
T1: nasopharynx, can extend to oropharynx
T2: Extension into parapharyngeal space and pterygoid musculature
T3: Invasion of bony structures and/or paranasal sinuses
T4: Intracranial extension, IT fossa, hypopharynx, or orbit
Tumor that is HMB 45 and S-100 positive is most consistent with
Melanoma
What marker is esthesioneuroblastoma often positive for?
Neuron specific enolase
What is the black box warning for PTU? When should PTU be used instead of methimazole?
Liver failure
SHould be used in the first trimester of pregnancy given risk of congenital defects with methimazole
What pressure is needed for cervicofacial liposuction?
1 atm (higher perssures are needed for body)
‘Motor oil fluid’ inside a parotid lesion is pathnomic for:
Warthin tumor
What happens to collagen and elastin levels in presbylaryngis?
Collagen (types I and III) increase
Elastin decreases