[Stomach and duodenal ulcer in endocrine tumors].

Clinico-anatomical analysis was performed in 13 cases of endocrine tumors of various sites with concomitant gastric and duodenal ulcer (Zollinger-Ellison's syndrome). Ulcer tended to recur in these patients; it was associated with pronounced pain and involved a high rate of such complications as perforation, bleeding and gastrointestinal fistula. Endocrine tumors were found to locate in the pancreas (5) and duodenum (5) while, in the other three patients, multiple endocrine adenomatosis (type 1) was identified. Correct diagnosis was made in three cases only and surgery was successful in two of them. Errors are analysed.