Cutaneous Plasmacytosis -Report of a Case-
摘要
A 30-year-old Taiwanese man presented with wild spread brown-black papules and plaques on His trunk and extremities for 7 years. Physical examination showed generalized lymphadenopathy. A skin biopsy specimen revealed dermal infiltrates of many mature plasma cells. The immunohistochem- ical study showed polyclonal origin of the plasma cells, and the immunoglobulin heavy chain gene rearrangement study excluded the possibility of lymphoma.there was no evidence of autoimmune disease or any infection sign. The patient also had IgA nephropathy and polyclonal hypergammaglob- ulinemia. This unusual condition has been reported as cutaneous plasmacytosis in Japanese literature. The clinicopathologcial features of this entity are described to document its occurrence in Taiwan.