title: Pyoderma gangrenosum: an unusual cause of periaural ulceration.
abstract: A case of pyoderma gangrenosum affecting the pinna and neck of a diabetic patient is reported. Appearances were suggestive of malignant otitis externa. A small biopsy resulted in rapid and aggressive exacerbation of the lesion. Pyoderma gangrenosum, although uncommon, should be considered as a cause of ulceration, particularly when the ulcer yields no growth on culture in a non-dependent area.
authors.affiliation: Otolaryngology Department, Ninewells Teaching Hospital, Dundee.
authors.forename: M
authors.initials: M
authors.lastname: Oluwole
mesh_terms: D048909:Diabetes Complications; D004427:Ear Diseases / Q000473:pathology; D004431:Ear, External / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D017511:Pyoderma Gangrenosum / Q000188:drug therapy / Q000473:pathology*