Chromoblastomycosis caused by Fonsecaea pedrosoi: The first molecularly confirmed case from Türkiye.

This report describes the first molecularly confirmed case of chromoblastomycosis caused by Fonsecaea pedrosoi in Türkiye. The patient had pruritic, sclerotic, purplish lesions on his right forearm. A biopsy specimen obtained from the lesion was submitted for histopathological examination and microbiological cultivation. Histopathological examination revealed characteristic muriform cells. Culture yielded a dematiaceous fungus, which was identified as F. pedrosoi through internal transcribed spacer (ITS) region sequencing. Itraconazole therapy was administered. After 12-month follow-up, the lesions had regressed significantly. This molecularly confirmed case from a non-endemic country highlights the emerging recognition of F. pedrosoi infections and underscores the importance of clinical awareness for rare fungal pathogens.