Histopathologic study of clinical types of pyoderma gangrenosum report of 9 cases with a short review of the literature

ABSTRACT

Pyoderma gangrenosum [PG] is an ulcerative skin condition of uncertain aetiology. This paper reports nine cases seen in two years at the Hamad General Hospital, Doha, State of Qatar. The clinical presentations varied and are described as pustular, ulcerative, bullous and superficial granulomatous or vegetative PG. The diagnosis was confirmed by histopathology; some being repeatedly biopsied. The most distinctive histopathologic features are summarised. Some aspects of PG are pointed out concerning its epidemiology, clinical picture, diagnosis, associated systemic conditions, aetiology and management