Who is the bug?
Common cause of otitis media unvaccinated
What is Hemophilus influenzae?
A second branchial arch anomaly
What is accessory tragus? Only treat if symptomatic.
Post traumatic herniation of brain; possibly due to chronic otitis in children
What is an encephalocele
Common cause of obstructed ear canal, relieved by irrigation
What is cerumen impaction
Has a Type III secretion system, pyocyanin, pyoverdin
What is Pseudomonal aeruginosa
Most common cause otitis media vaccinated
What is Streptococcus pneumoniae(35%)or H. flu nontypeable (20%)?
Perforated tympanic membrane & eustachian tube dysfunction
What is a cholesteatoma and yes, treat it.
Commonly occurs post ear piercing or minor trauma
What is a keloid
Pustule or furuncle involving skin appendages
What is acute localized otitis externa
Extrudes carbapenems and quinolones
What is mexEF-oprN extrusion system
Fruity smelling lactose fermenter
What is Pseudomonas aeruginosa?
Pulsatile tinnitus and conductive hearing loss
What is jugulotympanic paraganglioma and watch it
Older men with long history of sun exposure, premalignant, benign
What is an actinic keratosis
Edematous, red, itchy ear canal
What is 'swimmer's ear'?
Reaction to longstanding chronic otitis and prelude to cholesteatoma
What is an otic polyp
Gram positive cause of acute localized otitis externa
What is Staphylococcus aureus?
Bacterial infection of mastoid air cells
Acute mastoiditis and yes, treat it
Ulcerated lesion on helix of older men, benign
What is chondrodermatitis nodularis helicis
Results from chronic suppurative otitis media and perforated TM
What is chronic otitis externa?
Result of chronic inflammation and increased TNF alpha production
What is keratinaceous debris in cholesteatoma
Can grow on cerumen in external auditory canal
What is Aspergillus niger?
Spontaneous episodes of vertigo with occasional tinnitus
What is Meniere's disease; Yes try diuretics and other therapies
Anti type II collagen antibodies
What is relapsing polychondritis
Necrotizing infection spreading from skin of ear canal to adjacent tissues
What is malignant otitis externa
Inactivating mutations of NF2 gene on chromosome 22
What is cause of vestibular schwannoma?