[Differential diagnosis and therapy of plasmocytoma of the head and neck (author's transl)].

The differential diagnosis, therapy, and prognosis of extramedullary plasmocytoma of the mucosa in the head and neck region are discussed on the example of 10 own cases observed between 1965 and 1981. They are subdivided into three types: 1. The apparent solitary (or multiple) extramedullary plasmocytoma. However, after thorough clinical and paraclinical examination or after observation of the course of the disease the exact diagnosis of medullary plasmocytoma is established. For the therapy, cytostatics must be employed, and prognosis is unfavourable. 2. The genuine plasmocytoma of the mucosa. It has to be distinguished from the immunocytic lymphoma and corresponds to a Non-Hodgkin's-Lymphoma. The therapy is partly surgical and partly radiological; as a rule, prognosis is good. 3. The tumour-like granuloma of plasma cells which is of reactive inflammatory nature. Treatment is surgical only.