Gastrointestinal stromal tumor of the retroperitoneum: CT and MR findings.

Takao, Hidemasa; Yamahira, Ko; Doi, Ippei; Watanabe, Toshiaki · Eur Radiol · 2004

case_report · Level V

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Abstract

Gastrointestinal stromal tumor (GIST) is a non-epithelial neoplasm arising from the wall of the gastrointestinal (GI) tract. Although the majority of GISTs are located in the GI tract, some GISTs occur in the omentum, mesentery and retroperitoneum. GIST arising in the retroperitoneum is extremely rare, and its radiological findings have not been well described. We report a case of primary retroperitoneal GIST and discuss its imaging findings.

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