Mycetoma caused by Phellinus species: a rare case from Brazil

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Luís Arthur Brasil Gadelha-Farias
Lucas Mustafa-Aguiar
Gabriela Studart-Galdino
Silviane Praciano-Bandeira
Giovany Gomes-Capistrano
Paulo Roberto Arruda-Tavares
Glaucia Morgana de Melo Guedes
Jaime David Acosta-España


Mycetoma is a chronic and slow-developing granulomatous disease characterized by the triad of large painless tumour-like subcutaneous swellings, the formation of sinuses, and discharge that usually contains grains. Phellinus spp. are saprophytic wood-decaying filamentous basidiomycetes. They are an under-recognised cause of invasive fungal infections and are rarely reported worldwide. We report a 59-year-old male patient with mycetoma caused by Phellinus spp. The diagnosis was confirmed with clinical examination, magnetic resonance imaging (MRI) study, soft tissue and bone biopsy culture, and polymerase chain reaction. To the best of our knowledge, this is the first reported case of mycetoma due to Phellinus spp. without chronic granulomatous disease (CGD).

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