Authors describe a case of 24 years old woman with recurrent lower GI bleeding and mechanical obstruction. Crohn's disease was diagnosed at the beginning. It was impossible to treat the patient's profound anemia with blood transfusions due to her religion believes. The diagnosis of Peutz-Jeghers syndrome was made postoperatively. During operation mechanical obstruction (invagination of terminal ileum into ascending colon) was released. The invagination was caused by 3 cm large polyp localized in terminal ileum. Subsequently, 8 polyps (varying in size between 0.5 and 3 cm) in the small intestine were localized using intraoperative upper GI endoscopy and enteroscopy and finally surgically removed. Typical hamartomas were found on histopathological examination of removed polyps. Authors present modern attitude to Peutz-Jeghers syndrome--its diagnostics, treatment and follow-up.
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