[Gastrointestinal carcinoid tumors--a retrospective analysis of 12 cases].

Twelve patients operated for gastrointestinal carcinoid tumors are analyzed retrospectively. Clinically four of the cases (33%) were with signs of bowel obstruction, 4 (33%)--with signs of acute appendicitis, 3 (25%)--with signs of gastric outlet obstruction, and one (9%) with a picture of perforative peritonitis. Carcinoid syndrome was observed in two cases (17%). Five of the tumors (42%) were localized in the small intestine, 4 (33%)--in the appendix and 3 (25%)--in the duodenum. Small bowel resection was performed in 5 cases (42%), appendectomy--in 4 (33%), hemiresection of the duodenum--in 2 (17%) and duodenotomy with excision of the tumor and pyloroplasty--in one. In 2 cases liver metastases were found, and in one--multiple (3) tumors in the gut.