Misc Disease Of Auditory Canal

Question 1

impacted wax cerumen

Answer 1

composed of secretion of sebaceous ,ceruminous glands,hair,desquamated epithelial debris,keratin.dirt
secrete wax
acidic pH,bacteriostatic,fungistatic
remove it by syringing skin and sod. bicarbonate

Question 2

foreign bodies nonliving

Answer 2

forceps
syringing
suction
microscopic removal
postaural approach
living chloroform,oil

Question 3

Keratosis Obturans

Answer 3

collection of pearly white mass of desquamated cells in the deep meatus .
absorption of bone leads to widening of meatus so that facial nerve may be exposed

Question 4

etiology

Answer 4

5 to 20 years bronchiectasis and chronic sinusitis

epithelium goes to post meatal wall

Question 5

clinical features

Answer 5

pain
hearing loss
tinnitus
ear discgarge

Question 6

Clinical features

Answer 6

include purulent otorrhoea and pain; tympanic membrane being normal. Granulations associated with sequestrated bone need histological exami-nation to differentiate it from carcinoma, necrotizing otitis externa and a benign sequestrum.
Treatment consists of removal of necrotic bone and cho-lesteatoma, and lining the defect with fascia