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Updated: Aug 19, 2026

A Protocol for Roux-en-Y Gastric Bypass in Rats using Linear Staplers
Published on: August 21, 2021
[Multiple jejunal strictures caused by gastric heterotopia]
S Houissa-Vuong1, B Martin, G Lascar
1Cabinet d'anatomie et de cytologie pathologiques, 11 rue Nicolas-Fortin, 75013 Paris, France.
Abstract:
A case of gastric heterotopia was discovered incidentally on a jejunal resection specimen in a 42-year-old patient operated for Koenig's syndrome present for 10 years. This anomaly was responsible for seven chronic ulcers with strictures at multiple levels. Gastric heterotopia, especially in the jejunum, is a rare anomaly, except in intestinal duplications and Meckel's diverticulum. The various complications are a direct result of the activity of the gastric glands: hemorrhage, Helicobacter pylori enteritis, perforation, chronic ulcer and obstructive syndrome; malignant adenocarcinomatous degeneration has also been reported.
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