Gastric Duplication Cyst Presenting as Gastric Submucosal Tumor with Liver Metastases

Tetsuro Takayama, Takaomi Sato, Noritoshi Amada, Takashi Orii, Hiroyuki Kikuchi, Izumi Haga and Hiroshi Nakura*

Departments of Surgery and Pathology*, Sendai Syakaihoken Hospital

A 44 year-old woman with multiple liver tumors was diagnosed with a submucosal tumor in the posterior wall of the gastric antrum by gastrointestinal endoscopy. Because we could not exclude malignant submucosal tumor and multiple liver metastases in endoscopic biopsy, X-ray examination, ultrasonography, computed tomography, or serum CEA (13.6 ng/dl), we conducted distal gastrectomy and partially resected liver tumors. Macroscopically, the gastric tumor was elastic, soft, and covered with normal mucosa. The cut surface presented a cystic capsule filled with papillary epithelium. The definitive pathological diagnosis was gastric duplication cyst for the gastric submucosal tumor and adenomatous hyperplasia for the liver tumors. Gastric duplication cyst is a benign congenital anomaly mainly found in childhood with enteric disorders. Although asymptomatic adult duplications are rare, they should be considered in the differential diagnosis of gastric submucosal tumors.

Key words
gastric duplication cyst, gastric submucosal tumor

Reprint requests
Tetsuro Takayama Department of Surgery, Sendai Syakaihoken Hospital
3-16-1 Tsutsumi-cho, Aoba-ku, Sendai, 981-8501 JAPAN

Accepted
September 22, 2004

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