[Primary cutaneous Ki-1-lymphoma].

: With the help of immunohistochemical techniques and new antibodies developed in the last few years, we were able to identify 2 cases of nodular tumors of the skin as highly malignant Ki-1 lymphomas. The clinical course was characterized by the development of multiple skin tumors without any evidence of systemic involvement. After the excision of several skin tumors; we performed chemotherapy with the MACOP-B regimen. In one of our patients, however, this treatment could not prevent the occurrence of further tumors. Possibly, the cutaneous anaplastic Ki-1 lymphomas presented here are closely related to or even identical with mycosis fungoides d'emblee.