A Case of Early Gastric Cancer of Type IIa Originated in the Mucosa Just above a Lipoma of the Stomach

Tohru Satoh, Yoshinori Mogi, Hiroshi Azuma, Hidehumi Tsusima*, Masatoshi Kawamura*, Tadashi Koike*

Department of Surgery, Azuma Hospital, Chiba Prif.
*Department of Surgery, Showa University School of Medicine

Though lipoma of the stomach is a relatively rare disease, we recently experienced a case of gastric lipoma complicated with an early gastric cancer of Type IIa in the mucous membrane just above the lesion. A 77-year-old woman was found to have an anomaly in the gastroendoscopic examination in a routine medical checkup and was referred to our department for detailed examinations. A submucosal tumor was found near the anterior wall of the upper gastric angle on the lesser curvature side, which was complicated with an early gastric cancer of Type IIa in the mucous membrane just above the lesion. Subtotal gastrectomy (Billroth I method), R₂ lymphadenectomy, was performed. Pathohistologically, a lipoma in the submucosal layer and a moderately differentiated adenocarcinoma restricted to the mucosa just above the lesion were diagnosed. Only 17 cases of lipoma of the stomach complicated with gastric cancer have been reported in Japan. Further, there is no report concerning a gastric cancer originating in the mucosa just above the lipoma lesion, and this case thus seemed to be of extreme rarity.

Key words
lipoma of the stomach, gastric cancer, submucosal tumor of the stomach

Reprint requests
Tohru Satoh Department of Surgery, Showa University School of Medicine
1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142 JAPAN

Accepted
July 10, 1990

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