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CT SCAN


FEATURES OF PATHOLOGICAL CONDITIONS INVOLVING PERITONEAL SPACES


By Ghazala Malik, MBBS, FCPS (Pak), FRCR (UK), Consultant Radiologist, University Hospital, Sharjah, UAE


INTRODUCTION The peritoneal cavity contains a series of communicating but compartmentalized potential spaces that are not visualized on CT scan unless they are distended by fluid. The walls of peritoneal cavity as well as abdominal and pelvic organs contained within are lined with peritoneum. Peritoneum is an areolar membrane


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covered by a single row of mesothelial cells and has parietal and visceral. There is usually a small amount of


serous fluid, approximately 50-100 ml, in the peritoneum. The distribution of the peritoneal fluid is determined by the mesenteric reflections, the peritoneal recesses, the action of gravity, and hydrostatic pressure. The distribution


of fluid plays a significant role in the spread of inflammation and metastatic disease in the peritoneal cavity like, perihepatic abscess, perihepatitis, or seeded perihepatic metastases. Ultrasound has limitations in evaluation of peritoneal pathology and CT scan is the quick, easy and accurate way of evaluation of peritoneal abnormalities.


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