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


CASE PRESENTATION
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.


CONCLUSION
(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.
['Wang|Jiang|J|', 'Zhao|Rong|R|']
D015746:Abdominal Pain D000328:Adult D014408:Biomarkers, Tumor D001706:Biopsy D004912:Erythrocytes D005260:Female D006471:Gastrointestinal Hemorrhage D046152:Gastrointestinal Stromal Tumors D006801:Humans D007150:Immunohistochemistry D007580:Jejunal Neoplasms D011237:Predictive Value of Tests D019009:Proto-Oncogene Proteins c-kit D011877:Radionuclide Imaging D013667:Technetium D016896:Treatment Outcome
scintigraphy gastrointestinal stromal tumors abdominal 99mTc-RBC