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Phase 4 Question Knowledge > ENT > Flashcards

ENT Flashcards

1
Q

Weber’s test

A
  • 512Hz tuning fork placed in middle of forehead, ask which ear is loudest

Normal
- both equal

Sensorineural
- sound louder in normal ear

Conductive
- sound louder in affected ear

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2
Q

Rinne’s test

A
  • flat end of tuning fork on mastoid, when pt can no longer hear, move to 1cm away from ear, wait until not heard again

Normal
- pt can hear sound in air - AC>BC - Rinne’s positive

Abnormal
- Can’t hear sound in air - BC>AC - Rinne’s negative - conductive hearing loss

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3
Q

Audiometry interpretation

A

Normal - anything above 20db line

Sensorineural - both air and bone conduction reduced

Conductive - bone normal, air reduced

Mixed - both air and bone reduced, >15db difference between - air often worse than bone

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4
Q

Vertigo

A

sensation of movt between pt + environment - feel like they are spinning / room is spinning

mismatch of sensory inputs for balance / posture - vision / proprioception / vestibular issues

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5
Q

Vertigo causes

A

Peripheral - vestibular
- BPPV
- Meniere’s
- vestibular neuronitis
- labyrinthitis
- Ramsay-Hunt, trauma to vestibular nerve, acoustic neuroma, otosclerosis

Central - brainstem / cerebellum
- posterior circulation infarct
- tumour
- MS
- vestibular migraine

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6
Q

Benign paroxysmal positional vertigo (BPPV)

A

recurrent episodes of vertigo, triggered by head movt

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7
Q

BPPV Patho

A

Calcium carbonate crystals displaced into semicircular canals

disrupt endolymph flow, confusing vestibular system

head movt creates flow of endolymph - triggers vertigo

Causes - viral infection, head trauma, aging, no cause

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8
Q

BPPV Px

A
  • vertigo triggered by head movt
  • 10-20s episode
  • nausea
  • asym between attacks
  • episodes occur over several weeks, resolve, can recur later
  • no hearing loss / tinnitus
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9
Q

BPPV Dx

A

Dix-Hallpike manoeuvre

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10
Q

BPPV Mx

A

Epley manoeuvre

Brandt-Daroff exercises

Betahistine

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11
Q

Vestibular neuronitis

A

inflammation of vestibular nerve - usually viral

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12
Q

Vestibular neuronitis Px

A
  • acute onset vertigo
  • URTI hx
  • most severe at start (constant), then triggered by head movt
  • N+V
  • balance issues
  • horizontal nystagmus
  • no neuro sx
  • no tinnitus / hearing loss
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13
Q

Vestibular neuronitis Dx

A

Head impulse test

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14
Q

Vestibular neuronitis Mx

A

Buccal / IM prochlorperazine

Cyclizine, cinnarizine, promethazine

Maybe vestibular rehab therapy

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15
Q

Labyrinthitis

A

Inflammation of semicircular canals, vestibule, cochlear

Usually after URTI / bacterial infection (eg meningitis, OM)

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16
Q

Labyrinthitis Px

A
  • acute onset vertigo, exacerbated by movt
  • hearing loss - sensorineural
  • tinnitus
  • N+V
  • viral sx
  • gait - may fall to affected side
  • nystagmus
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17
Q

Labyrinthitis Dx

A

H/E
Head impulse test - abnormal

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18
Q

Labyrinthitis Mx

A
  • prochlorperazine
  • cyclizine, cinnarizine, promethazine
  • abx for bacterial cause
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19
Q

Meniere’s disease

A

Long term inner ear disorder

excessive endolymph in labyrinth - disrupt sensory signals

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20
Q

Meniere’s disease Px

A
  • unilateral, maybe bilateral after years
  • vertigo, 20mins-hrs episodes, in clusters
  • hearing loss - sensorineural
  • tinnitus
  • fullness in ear
  • drop attacks
  • imbalance
  • nystagmus in attack
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21
Q

Meniere’s disease Dx

A

clinical dx - by ENT

Audiology

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22
Q

Meniere’s disease Mx

A

Acute attacks
- prochlorperazine
- cyclizine, cinnarizine, promethazine

Prophylaxis
- betahistine
- vestibular rehab exercises

Inform DVLA - don’t drive until sx controlled

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23
Q

Otitis externa (OE)

A

inflammation of external ear canal

bacterial, fungal, eczema, contact dermatitis, trauma, swimming….

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24
Q

OE Px

A
  • ear pain, itch, discharge
  • red, swollen ear canal
  • lymphadenopathy
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25
Q

OE Ix

A

Can do swab

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26
Q

OE Mx

A
  • OTC acetic acid
  • otomize spray - neomycin + dex + acetic acid
  • oral abx (cipro / fluclox) - if immunocompromised, severe infection, spread beyond canal
  • ear wick - sponge/gauze with topical tx
  • fungal - clotrimazole
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27
Q

Malignant OE

A
  • severe life-threatening form of OE
  • commonly pseudomonas
  • spreads to bones - osteomyelitis of temporal bone

Px
- OE and more severe
- headache, pain, fever
- purulent ear discharge
- granulation tissue in ear canal
- facial nerve palsy, hoarse voice, dysphagia

Mx
- admit under ENT
- IV abx
- CT / MRI head

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28
Q

Otitis media (OM)

A

infection of middle ear

often after viral URTI

also bacterial - strep pneumoniae….

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29
Q

OM Px

A
  • ear pain
  • reduced hearing
  • URTI sx
  • balance issues, vertigo
  • discharge - if tympanic membrane perf
  • young pts - fever, vomiting, irritable, lethargy, poor feeding…
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30
Q

OM Ix

A

Otoscopy - bulging tympanic membrane (effusion), red, inflamed, discharge

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31
Q

OM Mx

A
  • paeds - admit if high fever…
  • analgesia
  • amoxicillin 5d / erythromycin / clarithromycin
  • abx if sx not improving >4d, perf, co-morbidities….
  • consider delayed prescription - eg after 3d if sx worsen
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32
Q

Mastoiditis

A
  • infection in mastoid air spaces of temporal bone (spread from middle ear)

Px
- otalgia - behind ear
- hx of OM
- fever, unwell
- swelling, red, tender over mastoid process

Ix
- CT

Mx
- IV abx

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33
Q

Presbycusis

A
  • age-related sensorineural hearing loss - high pitches first

Px
- gradual, insidious hearing loss
- speech difficult to hear
- tinnitus

Ix
- audiometry
- otoscopy - r/o ddx
- tympanometry
- bloods

Mx
- hearing aids
- cochlear implants

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34
Q

Otosclerosis

A
  • remodelling of base of stapes - becomes stiff - conductive hearing loss
  • <40yo

Px
- uni/bilateral
- hearing loss - lower pitches affected more
- tinnitus

Ix
- otoscopy - normal
- Weber’s / Rinne’s
- audiometry
- tympanometry
- ?CT

Mx
- hearing aids
- surgical - stapedectomy / stapedotomy - replace whole / part of stapes with prosthesis

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35
Q

Eustachian tube dysfunction

A
  • tube not working properly / blocked - eg URTI, allergies, smoking

Px
- reduced hearing
- popping in ear
- fullness
- pain, tinnitus

Ix
- otoscopy - r/o OM

Mx
- Valsalva
- decongestant nasal sprays
- antihistamines, steroid nasal spray
- Otovent - OTC
- surgery if severe

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36
Q

Glue ear

A
  • OM + effusion -> loss of hearing
  • eustachian tube blocked

Px
- reduction of hearing
- peak 2yo

Ix
- otoscopy - dull tympanic membrane, air bubbles / fluid level
- audiometry

Mx
- resolves alone <3mo
- hearing aids
- grommets
- ?adenoidectomy

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37
Q

Sudden sensorineural hearing loss (SSNHL)

A
  • unexplained hearing loss <72hrs - ENT emergency

Ix
- audiometry
- MRI / CT head

Mx
- ENT referral
- tx cause
- idiopathic - steroids - oral / intra-tympanic

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38
Q

Conductive causes of acute hearing loss

A
  • ear wax
  • infection - OM / OE
  • middle ear effusion
  • eustachian tube dysfunction
  • perforated tympanic membrane
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39
Q

Causes of SSNHL

A
  • 90% idiopathic
  • infection - meningitis, HIV, mumps
  • Meniere’s
  • ototoxic meds
  • MS
  • migraine
  • stroke
  • acoustic neuroma
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40
Q

Tinnitus

A

persistent ringing in ears

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41
Q

Tinnitus causes

A
  • idiopathic
  • meniere’s
  • otosclerosis
  • SSNHL
  • acoustic neuroma
  • hearing loss
  • drugs
  • ear wax
  • anaemia, DM, hypo/hyperthyroid, hyperlipidaemia
  • objective tinnitus - carotid artery stenosis, AS, AV malformation
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42
Q

Tinnitus Ix

A
  • otoscopy
  • Rinne, Weber
  • Bloods - FBC, glucose, TSH, lipids
  • audiology
  • CT / MRI if needed
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43
Q

Tinnitus red flags

A
  • unilateral
  • pulsatile
  • hyperacusis - hypersensitive to sounds
  • sudden hearing loss
  • vertigo / dizziness
  • visual / neuro sx
  • suicidal ideation from tinnitus
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44
Q

Tinnitus mx

A
  • tx cause
  • hearing aids
  • sound therapy
  • CBT
  • tinnitus support groups
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45
Q

Ear wax

A

Px
- conductive hearing loss
- ear discomfort, feels full, pain
- tinnitus

Ix
- otoscopy

Mx
- ear drops - olive oil / sodium bicarb
- ear irrigation
- microsuction - by ENT

46
Q

Acoustic neuroma

A
  • vestibular schwannoma
  • benign tumour of Schwann cells around vestibulocochlear nerve
  • 5% intracranial, 90% cerebellopontine angle tumours
  • Bilateral - NF2
47
Q

Acoustic neuroma Px

A
  • 40-60yo
  • CN8 - vertigo, unilateral sensorineural hearing loss, tinnitus
  • CN5 - absent corneal reflex
  • CN7 - facial palsy, forehead not spared
48
Q

Acoustic neuroma Ix

A
  • urgent ENT referral
  • audiometry
  • CT / MRI
49
Q

Acoustic neuroma Mx

A
  • surgery
  • radiotherapy
  • W+W
50
Q

Cholesteatoma

A
  • non-cancerous growth of squamous epithelium in skull base -> local destruction, infections

Px
- foul-smelling discharge
- hearing loss
- local invasion -> vertigo, facial nerve palsy, pain….

Ix
- otoscopy - attic crust
- CT / MRI

Mx
- ENT - surgery

51
Q

Auricular haematoma

A
  • blood in auricle after trauma
  • ENT assessment - incision + drainage - prevent cauliflower ear
52
Q

Perforated tympanic membrane

A
  • eg from infection, barotrauma, direct trauma
  • may have hearing loss

Mx
- 6-8wks to heal alone - avoid water
- abx for perf after acute OM
- myringoplasty - surgery to close perforation

53
Q

Epistaxis

A
  • nosebleed
  • anterior - Kiesselbach’s plexus, in Little’s area
  • posterior - deeper - risk of aspiration / airway compromise
54
Q

Epistaxis causes

A

Local
- nose picking, trauma
- FB
- colds, sinusitis
- cocaine
- topical drugs - steroids
- vascular, tumours

General
- coag disorders, blood thinners
- HTN, atherosclerosis
- weather changes
- excessive alcohol

55
Q

Epistaxis Px

A
  • unilateral
  • if bilateral - may indicate posterior
  • vomiting blood - if swallowed
56
Q

Epistaxis Ix

A

FBC, coag, G+S

57
Q

Epistaxis Mx

A
  • A-E, cannulate if needed

First aid
- sit up, tilt head forwards
- squeeze soft part of nostrils 10-15mins
- spit out blood, don’t swallow

Next
- nasal packing - nasal tampons / inflatable packs
- cautery - silver nitrate sticks - only one side of septum

After
- naseptin cream - chlorhexidine + neomycin - 10d QDS

Admission
- if uncontrolled / posterior - ?balloon catheter
- if unstable
- ?splenopalatine artery ligation in theatre (for posterior)

58
Q

Sinusitis

A
  • inflammation of mucous membranes in paranasal sinuses
  • eg strep pneumoniae, H influenzae, rhinoviruses
  • RFs - nasal obstruction, recent local infection, swimming, diving, smoking
59
Q

Sinusitis Px

A
  • recent URTI
  • facial pain, frontal, worse bending forward
  • nasal discharge, nasal obstruction
  • loss of smell
  • fever

Red flags
- unilateral
- persistent despite tx for 3mo
- epistaxis

60
Q

Sinusitis Ix

A
  • in chronic (>12wks) - nasal endoscopy, CT
61
Q

Sinusitis Mx

A
  • analgesia
  • intranasal decongestants
  • intranasal corticosteroids
  • oral abx - if severe - phenoxymethylpenicillin, co-amox (if systemically unwell)
62
Q

Allergic rhinitis

A
  • inflammatory disorder of nose - to allergens
  • seasonal / perennial / occupational

Px
- sneezing, blocked nose, itchy
- clear discharge, also at back of throat

Mx
- avoid allergen
- antihistamines - oral / intranasal
- intranasal corticosteroids
- topical nasal decongestants

63
Q

Nasal polyps

A
  • growth of nasal mucosa
  • usually bilateral - unilateral = ?tumour

associated with
- chronic rhinitis, sinusitis
- asthma
- Samter’s triad
- CF
- granulomatosis with polyangiitis
- Kartagener’s syndrome

64
Q

Nasal polyps px

A
  • ?chronic rhinosinusitis
  • difficulty breathing through nose
  • snoring
  • nasal discharge
  • anosmia
65
Q

Nasal polyps Ix

A
  • examine with nasal speculum
  • nasal endoscopy
66
Q

Nasal polyps Mx

A
  • intranasal steroid drops / spray
  • surgery - intranasal polypectomy / endoscopic if further back
67
Q

Nasal septal haematoma

A
  • haematoma between septal cartilage and overlying perichondrium - cx of nasal trauma

Px
- nose blocked, pain, rhinorrhoea
- bilateral, red swelling arising from nasal septum - boggy

Mx
- surgical drainage
- IV abx

Cx
- septal necrosis -> saddle nose deformity

68
Q

Tonsillitis

A

Inflammation in tonsils

Causes
- viral - most common
- Group A strep - strep pyogenes
- strep pneumonia…

69
Q

Tonsillitis Px

A
  • fever
  • sore throat
  • painful swallowing
  • lymphadenopathy
  • younger children - fever, poor oral intake, headache, vomiting, abdo pain
70
Q

Tonsillitis Ix

A
  • examine - red, inflamed, enlarged +/- exudates
  • examine ears
  • palpate for lymphadenopathy
  • rapid antigen for group A strep - if immunocompromised, old/young, severe sx
  • throat culture if antigen test negative
71
Q

Centor criteria

A

Probability of bacterial infection

> 3 of the following - indicates abx

  • fever >38
  • tonsillar exudates
  • absence of cough
  • tender anterior cervical lymph nodes
72
Q

FeverPAIN score

A

score /5, gives % chance of strep infection

2-3 is 34-40%, 4-5 is 62-65%

  • fever in past 24hrs
  • pus
  • attend <3d of sx onset
  • inflamed tonsils
  • no cough / coryza
73
Q

Tonsillitis Mx

A
  • paracetamol, ibuprofen, Difflam
  • abx - penicillin V / clarithromycin
  • consider delayed prescription
  • admit if needed - eg unwell…
74
Q

Quinsy

A
  • peritonsillar abscess
  • bacterial infection with trapped pus
  • most commonly strep pyogenes (GAS), also S aureus, H influenzae
75
Q

Quinsy Px

A
  • sore throat
  • painful swallowing
  • fever, neck pain, referred ear pain
  • swollen lymph nodes
  • trismus
  • hot potato voice
  • swelling / erythema beside tonsils
76
Q

Quinsy Mx

A
  • ENT admission - incision / drainage
  • Co-amoxiclav
  • ?dex for inflammation
77
Q

Tonsillectomy indications

A
  • 7+ cases in 1yr
  • 5/yr for 2yrs
  • 3/yr for 3yrs
  • Recurrent tonsillar abscesses (2 episodes)
  • Enlarged tonsils causing - difficulty breathing, swallowing, snoring
  • Recurrent febrile convulsions secondary to tonsillitis
78
Q

Tonsillectomy Cx

A
  • pain, sore throat
  • damage to teeth
  • infection
  • risks of GA
  • post-tonsillectomy
79
Q

Post-tonsillectomy bleeding Mx

A
  • ENT registrar
  • IV access, send FBC, coag, G+S/C
  • keep child calm, analgesia
  • spit blood out
  • NBM for GA
  • IV fluids / bloods
  • hydrogen peroxide gargle
  • adrenaline soaked gauze
80
Q

Thyroid surgery cx

A
  • recurrent laryngeal nerve damage
  • bleeding
  • parathyroid gland damage -> hypocalcaemia
81
Q

Laryngopharyngeal reflux

A
  • inflammatory changes in larynx / hypopharynx due to GORD

Px
- sensation of lump in throat - midline, worse swallowing saliva (rather than food/drink)
- hoarse voice, chronic cough, dysphagia, heartburn, sore throat

Ix
- clinical dx
- if red flags, 2ww referral - persistent unilateral discomfort, dysphagia, odynophagia, persistent hoarseness

Mx
- diet chages
- PPI, gaviscon

82
Q

Ludwig’s angina

A
  • progressive cellulitis which invades floor of mouth, soft tissues of neck
  • from dental infections

Px
- neck swelling
- dysphagia
- fever

Mx
- mx airway
- IV abx

83
Q

Salivary gland tumours

A

80% parotid, 80% of these - pleomorphic adenomas, 80% superficial lobe

84
Q

Pleomorphic adenoma

A
  • benign mixed parotid tumour

Px
- slow growing painless lump, moveable
- middle aged

Mx
- superficial parotidectomy

85
Q

Warthin’s tumour

A
  • benign, adenolymphoma, 10%
  • males, middle aged
  • softer, more mobile, fluctuant
86
Q

Salivary gland stones

A
  • 80% submandibular

Px
- recurrent unilateral pain / swelling on eating

Ix
- XR
- sialography - XR + contrast

Mx
- surgical removal

87
Q

Neck lumps DDx

A
  • Bony prominence - hyoid bone, cervical rib
  • lymphadenopathy
  • tumour
  • lipoma
  • goitre, thyroid nodules
  • salivary gland stones / infection
  • carotid body tumour
  • haematoma
  • thyroglossal cyst
  • branchial cyst
  • cystic hygroma
  • dermoid cyst
  • haemangioma
  • venous malformation
88
Q

Neck lump H/E

A

Hx
- SOCRATES
- fever, wt loss, night sweats
- FHx, smoking

Exam
- lump exam
- lymph nodes
- skin changes
- focal chest sounds - cancer
- clubbing
- HSM

89
Q

Neck lump 2ww referral criteria

A
  • unexplained neck lump >45yo
  • persistent unexplained neck lump any age

USS with growing lump:
- <2wks if >25yo, <48hrs if <25yo

90
Q

Neck lump Ix

A
  • bloods - eg FBC, blood film, HIV, EBV ABs, TFTs, ANA, LDH (Hodgkin’s)
  • USS, CT/MRI, nuclear medicine scan
  • Biopsy - fine needle / core, incision
91
Q

Lymphadenopathy causes

A

Reactive - URTIs, dental infections, tonsillitis

Infective - TB, HIV, IM

Inflammatory - SLE, sarcoidosis

Malignancy - lymphoma, leukaemia, mets, chest/abdo (supraclavicular)

92
Q

Lymphadenopathy sx suggesting malignancy

A

unexplained
persistently >3xm
abnormal shape - oval
hard / rubbery
non-tender
tethered / fixed to skin / underlying tissues
night sweats, wt loss, fatigue, fever

93
Q

Carotid body tumour

A
  • glomus cells (grouped into paraganglia) just above carotid bifurcation - benign tumour of this

Px
- slow growing lump, near angle of mandible
- painless, pulsatile
- bruit
- mobile side-to-side, not up/down
- may compress nerves - eg Horner’s

Ix
- imaging - splaying of internal / external carotids - lyre sign

Mx
- surgical removal

94
Q

Pharyngeal pouch

A
  • older men
  • posteromedial herniation between thyropharyngeus + cricopharyngeus muscles
  • Px - dysphagia, regurg, aspiration, cough
95
Q

Head/neck cancer

A

usually SCC

Locations
- nasal cavity, paranasal sinuses, mouth, salivary glands, pharynx, larynx

usually spread to lymph nodes first

RFs
- smoking, chewing tobacco, alcohol, HPV 16, EBV

96
Q

Head/neck cancer Px

A
  • lump in mouth / lip
  • unexplained mouth ulcer >3wks
  • erythroplakia, erythroleukoplakia
  • persistent neck lump
  • unexplained hoarse voice
  • unexplained thyroid lump
  • CN palsies, nasal obstruction, epistaxis, otalgia
97
Q

Head/neck cancer referral criteria

A

Laryngeal
- >45yo with persistent unexplained hoarseness / lump in neck

Oral
- unexplained mouth ulcer >3wks / lump in neck
- lump on lip / oral cavity / red or red/white patch - dentist to see

Thyroid
- unexplained thyroid lump

98
Q

Head/neck cancer Ix

A
  • Scans, biopsy
  • TNM staging
99
Q

Head/neck cancer Mx

A
  • chemo / radio
  • surgery
  • MAbs
100
Q

Glossitis

A
  • inflammation of tongue
  • red, sore, swollen
  • papillae atrophy - smooth tongue

Causes
- iron deficiency
- B12 anaemia
- folate anaemia
- coeliac
- injury / irritants

101
Q

Angioedema

A

fluid build up in tissues

Causes
- allergic reactions
- ACEi
- hereditary angioedema

102
Q

Oral candidiasis

A
  • oral thrush - white spots / patches on tongue / palate

RFs
- ICS
- abx
- DM, HIV, smoking

Mx
- miconazole gel
- nystatin suspension
- fluconazole tablets

103
Q

Geographic tongue

A
  • inflammatory - patches of tongue lose epithelium + papillae - irregular shapes
  • related to - stress, mental illness, psoriasis, atopy, diabetes
  • benign
  • topical steroids / antihistamines for sx control
104
Q

Strawberry tongue

A

tongue swollen, red
papillae enlarged + white

Scarlet fever / Kawasaki’s

105
Q

Black hairy tongue

A
  • defective exfoliation of keratin from tongue’s surface, papillae elongate + look like hairs

Causes
- dehydration, poor oral hygiene, smoking, abx, HIV, IVDU, radiation

Ix
- swab to r/o candida

Mx
- hydrate
- gently brush tongue
- stop smoking

106
Q

Leukoplakia

A
  • white patches on tongue, inside of cheeks - precancerous to SCC

Px
- asym, irregular, slightly raised

Ix
- biopsy

Mx
- stop smoking, alcohol
- potential surgical excision

107
Q

Erythroplakia

A

Red patches in mouth, like leukoplakia

108
Q

Lichen planus

A
  • autoimmune - local chronic inflammation of skin

Px
- shiny, purplish, raised areas with white lines
- bright red, sore
- plaques
- often only mouth, but can affect all mucosal membranes

Mx
- oral hygiene, stop smoking
- topical steroids

109
Q

Gingivitis

A
  • inflammation of gums
  • acute necrotising ulcerative version - rapid onset

RFs
- plaque, smoking, diabetes, malnutrition, stress

Px
- swollen gums, bleeding, painful, bad breath

Mx
- hygiene, stop smoking, dental hygienist clean
- chlorhexidine mouth wash
- abx for acute necrotising ulcerative - metronidazole, amoxicillin

110
Q

Gingival hyperplasia

A

abnormal growth of gums

Causes
- gingivitis
- pregnancy
- vit deficiency - scurvy
- AML
- meds - CCBs, phenytoin, ciclosporin

111
Q

Aphthous ulcers

A
  • small, painful ulcers of mucosa in mouth

Causes
- stress, trauma, foods
- IBD, coeliac, Behcet, vit deficiency, HIV

Mx
- if unexplained >3wks, refer for 2ww
- bonjela
- difflam spray
- lidocaine
- more severe - hydrocortisone buccal tablets, betamethasone, beclometasone

Phase 4 Question Knowledge (30 decks)

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