Abstract
Evaluation of the anal canal and rectum has traditionally relied on digital examination, anoscopy, and rigid or flexible proctosigmoidoscopy. The introduction of imaging methods, particularly endoluminal ultrasonography has brought a greater degree of objectivity to the evaluation of the anorectum.
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Kim, D.G., Wong, W.D. (2007). Endoluminal Ultrasound. In: Wolff, B.G., et al. The ASCRS Textbook of Colon and Rectal Surgery. Springer, New York, NY. https://doi.org/10.1007/978-0-387-36374-5_7
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DOI: https://doi.org/10.1007/978-0-387-36374-5_7
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