[Lymphoplasmocytoid immunocytoma of the skin]

A 68-year-old male patient presented with numerous red-brown papules on the trunk and neck. Cutaneous lymphoplasmocytoid immunocytoma was diagnosed following histological and electron microscopical detection of atypical lymphoid cells in the dermis. Immunohistochemistry revealed a monoclonal proliferation of IgG-kappa-positive B-lymphocytes. There was no extracutaneous manifestation of the lymphoma. Complete remission was affected by total-body irradiation with an electron beam.