Abstract
We studied clinicopathologically 22 cases of primary gastric lymphoma and evaluated the factors affecting the survival rates after operation. Seventeen patients underwent curative operation and 3 patients underwent noncurative operation; the resectability was 91%. Macroscopically there were 2 cases of type 2c, 2 of Borrmann type 2, 16 of Borrmann type 3 and 2 of Borrmann type 4. Mean size of the tumors was 10.4±4.8 cm. Lymph node involvement was observed in 4 of 8 cases with ps (-) and 6 of 13 cases with ps (+). Four cases were categorized into stage 1, 3 cases stage 2, 10 cases stage 3, and 5 cases stage 4. Histologically the majority was classified as diffuse type, including 12 cases of diffuse large type and 6 of diffuse medium type. The 5-year survival rate of curative operation was 43.2%, and 0% for noncurative operation with a significant difference. Adjuvant chemotherapy using CHOP changed the survival rates, however, radiation therapy did not. Clinicopathologically the prognosis of cases in stage 1, ps (-) or growths less than 14 cm was relatively good, but lymph node involvement or histological type did not affect the survivals.
