A case of eumycetoma due to Madurella grisea in northern Brazil.

A case of mycetoma caused by the black fungus Madurella grisea in northern Brazil is reported. The lesion was located on the patient's right foot without bone involvement. Clinical samples were collected by opening the fistules with a scalp and the grains removed for microbiological and histopathological analyses. Although mycetoma caused by M. grisea has been previously reported in Brazil, this is the first time that of this fungus has been identify in this particular region of the country.