Peritoneal carcinomatosis
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Peritoneal carcinomatosis is malignant seeding of the peritoneum. It is the most common peritoneal malignancy. It most commonly arises from ovarian cancer, colon cancer, gastric cancer and pancreatic cancer. Calcified peritoneal carcinomatosis may occur in serous ovarian adenocarcinoma, colon cancer, and gastric cancer.
Diagnosis
CT
- Smooth or nodular peritoneal thickening and enhancement.
- Implants on the liver and the splenic surfaces are frequently seen and result in scalloping of the surface by the masses.
- Sites of tumor implantation are the intersegmental fissure, superior recess of the lesser sac, subphrenic space, and Morison pouch.
- Usually there is large ascites, which is often loculated.
