Figure 2.

Extra colonic malignancies: (a and b) Axial contrast-enhanced computed tomography images in a 56-year-old female patient with history of ovarian cancer presenting with abdominal distension demonstrate ascites, peritoneal thickening and omental caking consistent with peritoneal carcinomatosis (arrow in a). There is marked distension of the proximal large bowel and fecal loading of the descending colon. The pelvic peritoneal metastatic deposits caused extrinsic narrowing of the sigmoid colon (arrow in b) and accounted for the large bowel obstruction. The large bowel dilatation and transition point in the sigmoid colon are better depicted on the coronal image (c).