R. Ehrnstrom et al., AN EXPERIMENTAL-STUDY OF GASTRIC STUMP CARCINOMA IN WISTAR RATS, APMIS. Acta pathologica, microbiologica et immunologica Scandinavica, 103(12), 1995, pp. 878-884
The risk of gastric stump carcinoma is increased 15-20 years after gas
tric resection for benign disease. Reflux of duodenal juice, bacterial
overgrowth and formation of N-nitroso compounds are possible etiologi
cal factors. There is a geographical variation in the incidence of gas
tric cancer, possibly explained by differences in food intake. Experim
entally it is possible to induce gastric stump carcinoma in rats witho
ut the addition of exogenous carcinogens. The aim of this study was: 1
) to find the incidence of gastric carcinoma in rats subjected to BII
resection and followed for 10 months, and 2) to examine if acetic acid
, a common dietary factor, could influence the development of gastric
carcinoma. Amongst BII-operated male Wistar rats, infiltrating carcino
ma was found in 5/20 on a normal diet and in 5/24 exposed to acetic ac
id (NS). Benign mucosal changes were seen in 12/20 and 16/24 respectiv
ely (NS). With the exception of a profound inflammation in one sham-op
erated animal, no mucosal pathological changes were found in 24 sham-o
perated and 24 control animals where no operation was performed.