Fonsecaea pedrosoi isolated from skin crusts of Bowen's disease.

Fonsecaea pedrosoi was isolated from scaly crusts of plaque lesions on the left thigh of a 60-year-old Japanese man. Histological examination confirmed these lesions to be due to Bowen's disease, and sclerotic cells were recognized in the stratum corneum. To our knowledge, this is the first study to demonstrate superficial colonization of a pre-existing skin lesion by F. pedrosoi.