Abstract
CT scans of the pelvis in 40 patients who had undergone abdomino-perineal resection for advanced rectal carcinoma 2 weeks to 24 years earlier were reviewed to determine whether there was any difference between simple postoperative change and local recurrence. Of 21 patients with no recurrence, the postoperative bed was clean in 10 and contained minimal streaky densities in 11. In contrast, a globular mass of soft-tissue density greater than or equal to1.5 cm in diameter was noted near the operative site in 19 patients with recurrence. Factors which may contribute to the disparity between these findings and those of previous investigators are discussed.
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