PMID: 22558484May 5, 2012Paper

⁹⁹mTc-RBC Scintigraphy for diagnosis of intestinal stromal tumor hemorrhage: a case report.

International Journal of Clinical and Experimental Pathology
Jiang Wang, Rong Zhao

Abstract

Gastrointestinal stromal tumors (GISTs) are rare and our understanding of the natural history and optimal treatment of GISTs are continually evolving. They are characterized by a remarkable cellular variability and their malignant potential is sometimes difficult to predict. We report the case of intestinal stromal tumor in a 44 years old patient with a long history of anemia and recurrent hemafecia. By using (99m)Tc-labeled red blood cell ((99m)Tc-RBC) scintigraphy, extensive tracer accumulation in the jejunum was detected. Immunohistochemically, the tumor strongly expresses the KIT (CD117) protein. The intestinal tumor was successfully resected with a postoperative favorable outcome. (99m)Tc-RBC scintigraphy is an established technique for the identification and localization of gastrointestinal bleeding. Abdominal scintigraphy appears to be a valuable supplement to conventional diagnostic methods for the diagnosis of gastrointestinal stromal tumor hemorrhage.

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