Fukushima J. Med. Sci.,
Vol. 52, No. 1, 2006

[Case Report]

GASTROINTESTINAL STROMAL TUMOR MIMICKING
GYNECOLOGICAL DISEASE

YUTAKA MORIMURA¹⁾, NAOYUKI YAMASHITA²⁾,
NOBUATSU KOYAMA²⁾, TAKEHARU OHZEKI³⁾,
TOMOKO TAKAYAMA³⁾, KEIYA FUJIMORI³⁾
and AKIRA SATO³⁾

¹⁾Department of Gynecology, Tsuboi Cancer Center Hospital, Koriyma, 963-0105, Japan
²⁾Department of Surgery, Tsuboi Cancer Center Hospital, Koriyama, 963-0105, Japan
³⁾Department of Obstetrics and Gynecology, Fukushima Medical University, School of Medicine,
Fukushima, 960-1295, Japan

(Received January 11, 2005, accepted February 3, 2005)

Abstract: Gastrointestinal stromal tumors (GISTs) are common mesenchymal tumors of the digestive tract. These tumors occasionally present a pelvic mass and leading to the misdiagnosis of gynecologic diseases. Two patients with GIST in the small intestine giving an impression of an ovarian fibroma and a uterine leiomyoma respectively were diagnosed correctly at the surgery. In the patients with a pelvic mass, especially if unusual symptoms and laboratory data being not compatible with gynecological disease, the possibility of diseases other than a gynecologic disease has to be considered.

Key words: Gastrointestinal stromal tumor, preoperative diagnosis, ovarian fibroma, uterine leiomyoma

森村　豊，山下直行，湖山信篤，大関健治，高山智子，藤森敬也，佐藤　章

Correspondence to: Yutaka Morimura, Department of Gynecology, Tsuboi Cancer Center Hospital, 1-10-13 Nagakubo, Asaka-machi, Koriyama City 963-0105, Japan.