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Oral phaeohyphomycosis

¹ Oral Diagnosis Unit, State University of Montes Claros, Montes Claros, Brazil
² Clinical Researches Laboratory, René Rachou Research Centre / FIOCRUZ, and Santa Casa de Misericórdia de Belo Horizonte Hospital, Minas Gerais, Brazil
³ Oral Pathology Department, Federal University of Minas Gerais, Minas Gerais, Brazil
⁴ Oral Pathology Unit, Federal University of Uberlândia, Uberlândia, Brazil
⁵ Surgical Pathology Department, Federal University of Uberlândia, Uberlandia, Brazil

Correspondence to:
Professor A M Loyola
Laboratório de Patologia Bucal, Universidade Federal de Uberlândia, Av Pará, 1720, Bloco 2U, CEP 38401-036, Uberlândia, MG/Brazil; adrianol{at}hc.ufu.br
ABSTRACT
This is the first description of solitary phaeohyphomycosis affecting the mucosal surface. The lesion developed in the inferior lip of a 57-year-old woman. After surgical resection, histopathological examination evidenced characteristic brownish fungal structures within granulomatous–purulent inflammation. Amplification and sequencing of rDNA obtained from paraffin-embedded tissue identified Alternaria species, as the causative agent.