Fig. 1

A 65-year-old male patient presenting with abdominal mass sensation and incomplete intestinal obstruction. A The tumor is mainly located in the peritoneal area, with spotted calcification visible(arrow), and the boundary with the adjacent bowel duct is unclear; B In the arterial phase after contrast enhancement, the tumor shows mild-to-moderate, uneven enhancement, with patchy areas of low-enhancement visible within (curved arrow); C The tumor exhibits unclear borders with the surrounding intestinal segments; D Multiple fluid-filled dilations are observed in the ascending colon and portions of the small intestine (asterisk)