Imaging Pearls ❯ Colon ❯ Pseudomyxoma Peritonei
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- “The term pseudomyxoma peritonei is a clinical or radiologic description rather than a pathologic diagnosis. Pseudomyxoma peritonei (or jelly belly) describes the finding of copious, thick mucinous or gelatinous material on the surfaces of the peritoneal cavity.”
Secondary Tumors and Tumorlike Lesions of the Peritoneal Cavity: Imaging Features with Pathologic Correlation Levy AD et al. RadioGraphics 2009; 29:347–373 - “Pseudomyxoma peritonei is a rare condition with a reported incidence of one case per mil- lion population per year. It occurs more commonly in women than men.The mean age of patients at diagnosis is 49 years (range, 23–83 years). Patients typically complain of pro- gressive abdominal pain, increasing abdominal girth, and weight loss. In some cases, patients complain of predominantly right-sided pain or they may have signs and symptoms similar to those of appendicitis when pseudomyxoma peritonei is located predominantly in the right lower quadrant.”
Secondary Tumors and Tumorlike Lesions of the Peritoneal Cavity: Imaging Features with Pathologic Correlation Levy AD et al. RadioGraphics 2009; 29:347–373 - “Scalloping of the visceral surfaces of the intra- peritoneal organs is an important diagnostic finding that helps differentiate pseudomyxoma from simple ascites. Scalloping represents the indentations that occur on the capsular margins of the intraperitoneal organs from the extrinsic pressure of the intraperitoneal mucinous implants. It is most commonly observed along the margins of the liver and spleen.”
Secondary Tumors and Tumorlike Lesions of the Peritoneal Cavity: Imaging Features with Pathologic Correlation Levy AD et al. RadioGraphics 2009; 29:347–373