LYMPHOMA OF THE GASTRIC STUMP - REPORT OF 2 CASES AND REVIEW OF THE LITERATURE

We report two cases of primary malignant lymphoma developing in a gast ric stump. The tumor was discovered 17 and 43 years, respectively, aft er partial gastrectomy for duodenal ulcer. Both tumors were B-cell muc osa-associated lymphoid tissue lymphomas, one of high-grade malignancy (large cell type) and one of low-grade malignancy (small cell type). Only 13 cases of primary malignant lymphoma of the gastric stump have been reported previously. Such a low frequency makes a causal relation ship between partial gastrectomy for benign lesion and the development of malignant lymphoma unlikely. However, these two cases illustrate t hat adenocarcinoma is not the only malignancy that can occur in a gast ric stump.