抄録
We present a case of Waldenström's macroglobulinemia in 56-year-old woman. She had several nodules in the face and head. Histological examination of these lesion revealed an infiltration of lymphoid cells in the dermis. These cells were almost positive for intracellular IgM and κ-light chain by immunoperoxidase method (PAP method). Several investigators reported macroglobulinemia with specific skin lesion, but this is the third case in which intracellular monoclonal immunoglobulin was demonstrated by immunoperoxidase staining.