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Radiology, Vol 132, 677-682, Copyright © 1979 by Radiological Society of North America

ARTICLES

Ultrasound evaluation of the posterior pelvic compartment

AB Kurtz, CS Rubin, FL Kramer and BB Goldberg

The posterior pelvic compartment, defined as consisting primarily of the rectosigmoid colon and peritoneal-lined cul-de-sac, was evaluated in 104 patients. Tumors and pseudotumors (fluid- and feces-filled loops of bowel) were ultrasonographically analyzed according to: (a) morphology and echo characteristics, and (b) location within either the cul-de-sac or rectosigmoid colon. On routine examination, a striking similarity between pathological processes and pseudotumors was demonstrated; these were diagnosed correctly only by the use of a technique in which the rectosigmoid colon is filled with water. Combined distension of the urinary bladder and rectosigmoid colon also enabled localization and differentiation of abnormalities within the cul-de-sac.




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