[Malignant plasma cell lymphoma of the stomach. Two cases and review of the literature (author's transl)].

Malignant plasma cell lymphomas have rarely been studied in the literature. We report two personal cases, the first survived 9 years, in the second case, histo-immunofluorescence revealed the presence of IgA kappa immunoglobulin. 59 cases have until now been reported to the best of our knowledge. They were reported under the term plasmocytoma. Analysis of data in the literature shows that plamocytomas resemble clinically and in prognosis, non-Hodgkin malignant lymphomas, of which Lukes and Lennert have recently given a new classification. Histo-immunofluorescence will permit in the future better understanding of the immunoglobulins secreted. Treatment is not yet standard. Three methods are used, depending on the spread of the tumour (surgery, radiotherapy and chemotherapy).