[Primary malignant non-Hodgkin's lymphoma of the stomach in the Kiel classification].

Resection preparations from 30 cases of primary malignant non-Hodgkin lymphomas of the stomach were reclassified using the Kiel-classification. In 17 cases centroblastic malignant lymphomas were found a further 4 were centroblastic-centrocytic, 4 were immunoblastic malignant lymphomas, and 5 immunocytic malignant lymphomas. Although preoperative gastroscopies and biopsies were carried out in 22 cases, certain diagnoses of lymphoma were possible in 9 cases only. Seven patients died within a month postoperatively. The two-year survival rate was more than one-third, and the five-year survival rate, less than one-fourth of all cases. The results are compared with data from the literature.