[Primary cutaneous B-cell lymphoma: present views].

Most lymphoproliferative B cell cutaneous lesions do represent primary lymphomas, not a secondary lymphomatous spread or pseudolymphoma* A description of the development of classification systems for primary cutaneous B lymphomas is given concerning especially some newly defined lesions: primary cutaneous marginal zone B cell lymphoma, primary cutaneous follicular centre cell lymphoma and large B cell lymphoma of the legs. Majority of primary cutaneous B lymphomas answer well the treatment and have a favourable prognosis.