الفهرس 
Anatomy of the PeritoneumOnly 14 pages are availabe for public view
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Abstract
Background: The diagnosis of peritoneal carcinomatosis secondary to colorectal cancer is a real challenge in the cancer imaging field. In this retrospective study, we evaluate the accuracy of contrast enhanced Multi Detector Computed Tomography (MDCT), compared to Positron Emission Tomography–Computed Tomography with F18-fluorodeoxyglucose ((18F)FDG-PET/CT) in the diagnosis of peritoneal seeding.
Objective: To highlight the diagnostic value of positron emission tomography/computed tomography (PET/CT) in the detection of peritoneal carcinomatosis in patients known to have colorectal cancer.
Patients and Methods: We retrospectively evaluated 55 patients with intestinal malignancy affecting any site from ileocecal valve till anus with patient’s mean age of 56.4±12 years, ranging from 32-78 years. Males were the largest proportion of the included patients accounting for 64.5% versus 35.5% females. The study was performed at the PET/CT unit in in the radiology department of Ain shams university during the period between 2022 and 2023.
Results: Our study indicates the significant role of PET/CT over the conventional imaging in the diagnosis of peritoneal carcinomatosis. This demonstrates its important value in the staging, management and follow-up of patients with secondary peritoneal malignancies from colorectal origin, especially in case of unavailable or inappropriate peritoneal biopsy.
Conclusion: Therefore, PET/CT may help reduce the number of laparotomies and in a better selection of patients who are candidates for adjuvant chemotherapy.