Fig. 5
From: Tuberculous otitis media masquerading as malignancy: a diagnostic challenge
Biopsy from external auditory canal shows A) ulceration of the covering stratified squamous epithelium showing marked pseudoepitheliomatous hyperplasia (yellow arrow). The ulcerated areas show several granulomas (black arrows) surrounded by dense acute on chronic inflammation and granulation tissue, 100 × B) The granulomas show central foci of necrosis and microabscess formation (star), 400x. Haematoxylin and eosin stain