Abstract: A 60- years-old male patient presented with a 16-year history of progressively enlarging erythema and crusting on the right wrist. Physical examination revealed an annular erythema with clear boundary, exudative scab. The lesion was 4 cm×6 cm in size. Many light brown akinetes were seen under microscopy. Olivaceous-black woolly bacterial colonies grew at 25℃ on Sabouraud's dextrose agar medium. Flask-shaped conidiogenous cells with collar structure and ellipsoidal conidia arranged in flower-like shape were seen under microscopically after cultured. PAS staining showed numerous akinetes. The diagnosis of chromoblastomycosis caused by Phialophora verrucosa was made. The patient was treated with oral itraconazole capsules, topical terbinafine hydrochloride cream and 45℃~50℃ hot compress. The lesion healed gradually.

Key words: chromoblastomycosis, Phialophora verrucosa