title: Blastomycosis of the larynx.
abstract: Blastomycosis is an uncommon fungal disease which may mimic carcinoma of the larynx. Physical examination may show a granular appearance early in the disease with progression to laryngeal fibrosis. Histologic examination usually shows pseudoepitheliomatous hyperplasia, microabscesses, and giant cells. The broad-based budding yeast organisms may be easily overlooked unless special stains are used. Two cases of laryngeal blastomycosis which were originally treated as carcinoma are reported.
mesh_terms: D000368:Aged; D001759:Blastomycosis / Q000175:diagnosis / Q000473:pathology*; D003951:Diagnostic Errors; D006801:Humans; D007818:Laryngeal Diseases / Q000175:diagnosis / Q000473:pathology*; D007822:Laryngeal Neoplasms / Q000175:diagnosis; D007830:Larynx / Q000473:pathology; D008297:Male; D008875:Middle Aged