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Purpose: To demonstrate CT findings of a wedge-shaped lesion (WSL) in the liver following abdominopelvic surgery and to determine the etiology and incidence of WSL.Material and Methods: Retrospective review of teaching files in our institution revealed 18 cases showing postoperative WSL in the liver. We also retrospectively reviewed CT images of the liver in 104 patients with a recent history of abdominopelvic surgery performed during a period of 12 months, as well as in 102 patients with no history of surgery during the same period to be used as control. Three additional patients with WSL were found in the postoperative group and none in the control group. Liver CT images from the 21 patients showing WSL, along with their clinical data and follow-up CT where available, were retrospectively analyzed.Results: I.v. contrast-enhanced CT showed homogeneous higher attenuation of WSL than the surrounding liver in all cases; unenhanced CT showed low density in 5 patients, isodensity in 7 patients, and high densi...
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Yoshimitsu et al. (1996) studied this question.
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