(en) Thirteen patients underwent during the period 1968-1981, surgery for carcinoma of the gastric remnant stump. All these patients had been submitted previously to surgical treatment for benign gastro-duodenal ulcerous disease ( 12 patients -Billroth II resection ; one patients : gastro-enterostomy). The time laps between the first intervention and diagnosis of the neoformation of the gastric remnant stumb is 30 ± 4 S.D. years. The mean age of this patient group is 66.1 % ± 5.9 S.D. years, men outnumbered (12 men - 1 woman). The surgical treatmen_t consists in a total gastrectomy { 11 cases), extended to the adjacent organs ih 5 CaseS · and 'in: an· lt'era'tive partial gastrectomy following Billroth II in 2 cases. One patient dead during the postoperative period ( 7 .6 % ) . Histologic examination of the resected specimen shows an adenocarcinoma in every case. This lesion was localized in 6 cases of 13 ( 46 % ) at the gastro-jejunal anastomosis. Two other patients (15.4 % ) also had precancerous lesions at this level. In near all patients, the gastric mucosa presented important cellular disorganisation. The corrected ·global actuarial 5 year survival is 51 % ± 16 S.D. and thereby is comparable to the survival of the primarely operated stomach cancer.·If the lymphnodes are not involved, corrected actuarial survival at 5 years is 83 % ± 15 S.D. If lymphnodes are involved, there me no survivors at 2 years. Pathophysiology of the cancer of the gastric stump is discussed. Early diagnosis is based on radiological and mainly endoscopical examination with multiple tissue biopsies. Cancer of the g_astric remnant stump has to be detected early, according to the excellent prognosis of the superficial lesions. Peroperative staging will guide the definitive surgical therapy (Acta gastro-ent. belg., 1983, 46, 27-38).