Chromoblastomycosis caused by Fonsecaea pedrosoi: The first molecularly confirmed case from Türkiye.
Büşra Çalışır, Sezen Yusuf, Seçil Ak Aksoy et al.
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Case in brief
A patient in Türkiye presented with pruritic, sclerotic, purplish lesions on the right forearm. Biopsy showed characteristic muriform cells, and culture grew a dematiaceous fungus. Internal transcribed spacer sequencing identified the isolate as Fonsecaea pedrosoi, confirming chromoblastomycosis. The patient received itraconazole; at 12-month follow-up, the lesions had regressed significantly.
What made this case unusual
The report documents molecular confirmation of F. pedrosoi as the cause of chromoblastomycosis in Türkiye, described by the authors as the first such case from the country.
Diagnostic / clinical pearl
In suspected chromoblastomycosis, characteristic muriform cells on histopathology can support diagnosis; culture with ITS sequencing can identify the causative fungus.
Why it matters
The case highlights recognition of F. pedrosoi infection in a country described as non-endemic.