Evaluation of benign and malignant rectal lesions with CT colonography and endoscopic correlation

Alvin C. Silva, Eric A. Vens, Amy K. Hara, Joel G. Fletcher, Jeff L. Fidler, C. Daniel Johnson

Research output: Contribution to journalReview article

23 Scopus citations


Colorectal carcinoma is a significant cause of death from cancer in the United States, and early detection and treatment are critical. Computed tomographic (CT) colonography is a noninvasive, rapidly evolving technique that is a potential alternative to conventional colonoscopy for colorectal cancer screening. Rectal disease (eg, polyps, cancerous lesions, extramucosal lesions, inflammatory disease) can be especially challenging to diagnose with CT colonography because of several factors that can simulate or obscure the disease (eg, over- or underdistention, rectal tube, stool, artifacts). Familiarity with the spectrum of rectal diseases and with the potential pitfalls and technical limitations of CT colonography will help minimize interpretative and perceptual errors.

Original languageEnglish (US)
Pages (from-to)1085-1099
Number of pages15
Issue number4
StatePublished - Aug 11 2006


ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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