Primary B-cell gastric lymphoma: A clinicopathological study of 145 patients
1991
Abstract Resection specimens from 145 patients with primary B-cell gastric lymphoma at stage I E (n = 88) and at stage II E (n = 57) were investigated. Histologically, low-grade malignant B-cell lymphomas arising from the mucosa-associated lymphoid tissue, including immunocytoma (n = 71), could be distinguished from high-grade malignant B-cell lymphomas with (n = 25) and without (n = 49) evidence of a lowgrade component. The very rare low-grade B-cell lymphomas of centroblastic-centrocytic, centrocytic, and plasmacytic type were not considered. All patients had undergone primary gastric resection, and 65 received additional chemotherapy (n = 33), radiotherapy (n = 22), or both (n = 10). Actuarial overall survival rates calculated by the Kaplan-Meier life-table method were 76% after 5 years and 58% after 10 years. According to the Mantel test and a multivariate analysis using the Cox regression method, patients at stage I E had a significantly better survival probability than those at stage II E ( P P P
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