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Clin Imaging. 2009 Nov-Dec;33(6):430-2. doi: 10.1016/j.clinimag.2009.01.009.

Computed tomography findings mimicking appendicitis as a manifestation of colorectal cancer.

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  • 1Department of Radiology, University of California, 505 Parnassus Avenue, San Francisco, CA 94143-0628, USA.


The primary computed tomography (CT) signs of appendicitis can also be seen with other inflammatory or neoplastic processes. We report on two cases in which appendiceal dilatation and peri-appendiceal fluid or stranding were the dominant imaging manifestations of colorectal carcinoma in the ascending colon. This study highlights the need to closely examine the ascending colon in patients with a suspected CT diagnosis of acute appendicitis, since these findings may be secondary to an inconspicuous colorectal carcinoma.

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