A Case of Gastrointestinal Stromal Tumor of the Sigmoid Colon

We report a rare case of gastrointestinal stromal tumor of the colon. A 35-year-old woman admitted with lower abdominal pain under a diagnosis of peritonitis underwent emergency. Laparotomy showed a large tumor of the sigmoid colon had ruptured, necessitating sigmoidectomy. Histopathological finding...

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Bibliographic Details
Published inNippon Shokaki Geka Gakkai zasshi Vol. 35; no. 11; pp. 1717 - 1720
Main Authors Murakami, Maki, Morikawa, Akio, Iijima, Satoshi, Suzuki, Akira, Miyazawa, Koichi
Format Journal Article
LanguageJapanese
Published The Japanese Society of Gastroenterological Surgery 2002
Subjects
gastrointestinal stromal tumor
peritonitis
sigmoid colon
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Summary:We report a rare case of gastrointestinal stromal tumor of the colon. A 35-year-old woman admitted with lower abdominal pain under a diagnosis of peritonitis underwent emergency. Laparotomy showed a large tumor of the sigmoid colon had ruptured, necessitating sigmoidectomy. Histopathological findings showed interlacing fascicles of spindle cells with high cellularity. Immunohistochemically, tumor cells were positive for ckit and CD34 and negative for alpha-smooth muscle actiin and S-100 protein. The pathological diagnosis was malignant gastrointestinal stromal tumor, uncommitted, of the sigmoid colon. The patient is free of tumor reccurence 18 months since surgery.
ISSN:0386-9768
1348-9372
DOI:10.5833/jjgs.35.1717