Wegener's granulomatosis with an atypical presentation as acute tonsillitis.

Wegener's granulomatosis (WG) is a rare necrotizing granulomatous vasculitis of unknown etiology commonly involving vessels, the upper and lower respiratory system and the kidneys. There are various symptoms and signs of WG due to a wide spectrum of involvement sites. The initial presentation of the disease as intraoral lesions is rare. In this paper, a case of WG that presented with a necrotic lesion confined to the right tonsil before other symptoms and signs occurred is described. The diagnosis was established based on the clinical presentation and the histopathological findings of the characteristic inflammatory pattern.