Diseases Of External Ear

Question 1

Name ways in which disease manifests in external ear

Answer 1

Congenital abnormalities Trauma Inflammatory processes Cerumen Foreign bodies in External auditory canal Tumour

Question 2

Exostoses vs. Osteoma

Answer 2

Exostoses are multiple tumours whilst osteoma is usually one and involve the bony deep part of ear canal

Question 3

Population affected by exostoses

Answer 3

People with prolonged water exposure aka swimmer’s ear

Question 4

Pathogenesis of exostoses

Answer 4

Due to chronic periostitis because of prolonged exposure to cold water leading to bony overgrowth

Question 5

Osteoma

Answer 5

True benign neoplasm

Question 6

Complications of rumours of external

Answer 6

They can have infections and compressions of the ear canal and lead to debris with bony obstructions that cannot be cleared effectively

Question 7

Treatment of exostoses and osteoma

Answer 7

Topical antibiotics Canaloplasty Reduce exposure to cold water Regular inspection and cleaning of ear canal

Question 8

Chondrodermatitis nodularis chronica helicis

Answer 8

Painful erythmatous nodule on pinna at superior aspect. Spontaneous. Caused by minor trauma or cold. Leads to perichondritis and inflammation. Treated with intralesional steroids or surgical excision

Question 9

Squamous papilloma

Answer 9

Warty HPV lesion of External ear histology on excised sample confirms diagnosis

Question 10

Manifestations of ceruminous tumors

Answer 10

Adenoma (benign) Adenocarcinoma Adenoid cystic carcinoma (both malignant)