抄録
A case of cutaneous B cell lymphoma is reported. The patient was a 82-year-old female, who developed multiple indurated plaques and subcutaneous nodules on her trunk during past 6 months. Histopathology of the skin lesion showed diffuse infiltrate of atypical mononuclear cells, that were positive for CD19, CD20, CD10, CD79a, and HLA-DR. Surface immunoglobulin was negative. Gene analyses disclosed that the tumor cells were positive for immunoglobulin gene and T cell receptor δ1 gene rearrangements. We tried total skin electron beam therapy, that resulted in a complete remission of the skin lesion. [Skin Cancer (Japan) 2000; 15: 71-74]