To illustrate the characteristic imaging findings of mesentery or peritoneal diseases from common to uncommon disease subdividing into neoplastic and non-neoplastic pathology To evaluate knowledge of imaging findings of these diseases by self-assessment study To provide a comprehensive review of these diseases and schematic differential point focusing each disease's unique imaging findings

Beyond commonly encountered cases of peritonitis, there are a variety of uncommon diseases arising from the peritoneum and mesentery either benign or malignant. The imaging findings of these diseases appear as a combination of various forms such as peritoneal thickening, nodules, ascites, calcifications, or mass. As these imaging findings are complex and are often nonspecific, differential diagnosis is often difficult. However, each disease also has unique radiologic features. We review the key imaging features of common or uncommon peritoneal or mesenteric-origin diseases and provide schematic...

Anatomy Peritoneum is a thin serous membrane that covers thesurface of the peritoneal cavity and its mesenteries. It is formed by a single layer of simple low-cuboidal epithelium called a “mesothelium.” It is divided into visceral and parietal components. The visceral peritoneum covers the intraperitoneal organs, omenta, and mesenteries. The parietal peritoneum lines the anterior, lateral, and posterior abdominal walls; undersurface of the diaphragm; anterior surface of the retroperitoneal viscera; and the pelvis. Peritoneal ligaments, mesentery, and omentum divide the peritoneum into two compartments: the...

CT remains the most useful imaging modality for the diagnosis. Although imaging findings of the peritoneal and mesenteric diseases may be nonspecific, the table below summarizes the differential points of the radiologic features for the specific differential diagnosis. (Table 2)

Contact details: Dr. Hong Il Ha Abdominal Radiology Section. Department of Radiology, Hallym University Sacred Heart Hospital, Anyang, South Korea. Email: [email protected] Department of Radiology, Hallym University Sacred Heart Hospital: Abdominal radiology section: Dr.H. I. Ha Dr.S. M. Lee Resident in training: Dr.W. Hong

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