[Case of cutaneous Pseudallescheria boydii infection caused by trauma].

Pseudallescheria boydii is a ubiquitous filamentous fungus. We report a case of cutaneous P. boydii infection of the left knee in a 79-year-old Japanese man who was receiving oral predonisolone (25 mg/day) for radiation pneumonitis after radiation therapy on left breast cancer.

Primary cutaneous aggressive epidermotropic CD8+ T-cell lymphoma with a CD15(+)CD30(-) phenotype.

Primary cutaneous aggressive epidermotropic CD8(+) T-cell lymphoma (CD8(+)TCL) is an extremely rare entity with distinct clinicopathological features. While the CD15 antigen is typically associated with classic Hodgkin's lymphoma, aggressive peripheral T-cell lymphomas, including advanced stage cutaneous T-cell lymphomas, rarely express this molecule. We report a case of primary cutaneous aggressive epidermotropic CD8(+)TCL, in which lymphoma cells are CD15(+)CD30(-) with a medium-to-large pleomorphic phenotype.