TY - JOUR T1 - Fatal abdominal sarcomatosis secondary to gastrointestinal stromal tumor with bland histology JF - Saudi Medical Journal JO - Saudi Med J SP - 1469 LP - 1472 VL - 30 IS - 11 AU - Yasmin M. Elshenawy AU - Charles E. Ganote AU - Mousa A. Al-Abbadi Y1 - 2009/11/01 UR - http://smj.org.sa/content/30/11/1469.abstract N2 - Fatal abdominal sarcomatosis is a rare complication secondary to gastrointestinal stromal tumor (GIST) arising from the small intestine. Here, we describe a 49-year-old man who presented with massive ascites and multiple mesenteric solid masses. Autopsy showed large necrotic mass (19x14x8.0 cm) surrounding the terminal ileum with multiple smaller nodules on the omentum and mesentery. Histological examination revealed highly cellular, predominantly bland, spindle cells with low mitotic activity. Gastrointestinal stromal tumor was confirmed by strong positive staining for c-KIT (CD 117). Our case is an example of fatal intra-abdominal sarcomatosis of GIST where the histological features were essentially bland. ER -