Greater omentum gastrointestinal stromal tumor with PDGFRA-mutation and hemoperitoneum

Figure 1 Contrast-enhanced axial (A) and coronal (B) abdominal computed tomography. A huge mass was seen in the right abdominal cavity showing internal heterogeneity, with some high density area, but comprised mostly of low density regions which seemed to be a cystic component or interstitial mucous. The high density area was not enhanced, thus hemorrhage was suggested. Moreover a large amount of bloody ascites was seen in the pelvic cavity.