ENT Flashcards
DDx of cervical lymphadenopathy
EBV HIV Adenovirus CMV HZV Steptococcal pharyngitis NHL, HL, CLL
What travels through parotid?
Facial nerve (if facial nerve palsy = malignant parotid)
Causes of parotitis?
Mumps Stone Sarcoid Tumour HIV Wegeners
B/l swelling of parotids for 1w, low grade fever.
What Ix?
FBC, ESR/CRP, U+Es, Blood cultures. Viral serology.
Salivary antibody testing (salivary mumps IgM)
Pus swab
USS
Sialography
CT/MRI (r/o neoplasm)
Which salivary gland is commonly obstructed?
Submandibular
parotid is wider, more watery saliva
Parotid pain + swelling at meal times, colicky, relapse + remitting.
Likely dx?
Ix?
Obstruction
USS + contrast sialography
Mx of obstruction?
Conservative [good hydration, warm compress, massage]
Surgical removal
Red flags of salivary glands that would indicate malignancy
Rapid increase in size Ulceration Fixation Paraesthesia (facial nerve) Past hx of skin cancer Sjogrens
Ix for salivary gland tumour
USS
+ FNA
+ core biopsy
MRI for staging
CT for met spread
Complication of salivary gland tumour removal?
Damage to facial nerve
Recurrence
Freys syndrome (redness/swelling of cheek when eating)
Most common cause of vertigo?
BPPV
Pres of BPPV?
Vertigo provoked by head movement, worse when head tilted to on e side
Sudden onset attacks 20-30seconds
Assos N+V
Red flags in vertigo
Hearing loss
Tinnitus
Pain
Headache
Ix in BPPV?
Dix-Hallpike (positive on one side ONLY)
Otoscopy
Cranial nerve examination
What if Dix-Hallpike positive bilaterally?
Vestibular neuritis / central cause
DDx in vertigo
BPPV Vestibular labrythitis MS Menieres Acoustic neuroma Ramsay-Hunt
Mx of BPPV
Get out of bed slowly, reduce head movements
Epley’s manoeuvre
Dont drive when dizzy
Pres of Menieres?
Episodic auditory and vestibular disease –> Sudden onset vertigo (30mins), hearing loss, tinnitus and aural fullness [unilateral]
Drop attacks, positive Rombergs
Pathophysiology of Menieres?
Overprod / lack of absorption of endolymph
Ix in Menieres?
Mainly exclusion!
MRI, TFT, Syphillis serology
Initial hearing loss in Menieres?
Low frequency
Initial hearing loss in acoustic neuroma?
High frequency
Mx of Menieres?
Low salt diet + diuretics
Medical [topical meclozine; Meniett device; intratympanic corticosteroids]
Surgical [endolymphatic sac surgery]
Vestibular neuritis pres?
Acute vertigo
Labrythitis pres?
Acute vertigo + hearing loss
Cause of vestibular neuritis?
Usually due to reactivation of HSV in vestibular ganglion
cause of labrynthitis?
Post viral URTI (50%)
Pres of VN/L ?
Sudden, servere incapacitating vertigo (illusion of moving), N+V
NOT triggered by movement (Dix-Hallpike negative)
Hearing loss = labrythitis
URTI sx
Ix in VN/L
Otoscopy
CN examination
Rinnes/Webers
HINTS [Head impulse, nystagmus type, skew] to differentiate from stroke
HINTS indicating VN/L?
Unidirectional nystagmus, no vertical skew
In stroke - bidirectional nystagmus and a vertical skew are present
Mx of VN/L
Prochlorperazine for vertigo
Acoustic neuroma?
Where is it?
CN8 tumour of Schwann cell
Cerebellopontine angle
Pres of acoustic neuroma?
Unilat hearing loss, tinnitus (progressive)
Impaired facial sensation
Impaired balance
When do you see bilat acoustic neuroma?
NF T2
Ix in acoustic neuroma?
Audiology
MRI
Mx of acoustic neuroma?
Microsurgery
If small tumour and preserved hearing can watch and wait
Examination of sinus?
Palpate + assess nose
Cause of sinusitis?
S. pneumoniae
H. influenza
Moraxella
Catarrhalis (children)