Gastric Leiomyoblastoma Showing Exogastric Pedunculated Development

Toshihiro Sakakibara¹⁾³⁾, Takashi Sakamoto¹⁾, Mitsukazu Saito, Kazumaro Yamazaki, Yuuji Ihara, Katsunori Tauchi, Tetsuro Shimizu,
Kazuhiro Tsukada and Eikichi Okada²⁾

Second Department of Surgery¹⁾, First Department of Pathology²⁾, Toyama Medical and
Pharmaceutical University, Department of Surgery, Kuwana Hospital³⁾

A 69-years-old woman was admitted to the hospital because of a exogastric tumor 4 cm in diameter with a homogenous internal structure as demonstrated by abdominal CT. Endoscopic ultrasonography revealed a tumor described as a hypoechoic lesion containing a echo-free area with continuation to the 4th layer of the gastric wall. Endoscopic examination on admission showed extraluminal compression at the greater curvature of the upper body of the stomach, but at re-examination this finding was not recognized. Under a diagnosis of gastric leiomyoma showing exogastric pedunculated development, a wedge resection of the stomach including the tumor was performed laparoscopically. Histological diagnosis of the resected tumor was leiomyoblastoma. Gastric leiomyoblastoma showing exogastric pedunculated development is very rare, in refference to the literature. We report this case with some additional disccussion on the related literature.

Key words
gastric leiomyoblastoma, laparoscopic wedge resection of stomach

Reprint requests
Toshihiro Sakakibara Department of Surgery, Kuwana Hospital 6-4 Furukawa-cho, Niigata-city, 950-0056 JAPAN

Accepted
March 22, 2000

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