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The four major categories of fistula in ano (left side of drawings) and the usual operative procedure to correct the fistula (right side of drawings).

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Presentation on theme: "The four major categories of fistula in ano (left side of drawings) and the usual operative procedure to correct the fistula (right side of drawings)."— Presentation transcript:

1 The four major categories of fistula in ano (left side of drawings) and the usual operative procedure to correct the fistula (right side of drawings). A. Intersphincteric fistula with simple low tract. B. Uncomplicated transsphincteric fistula. C. Uncomplicated suprasphincteric fistula. D. Extrasphincteric fistula secondary to anal fistula. (Data from Gordon PH, Nivatvongs S, eds. Principles and Practice of Surgery for the Colon, Rectum, and Anus. 2nd ed. New York: Marcel Dekker, Inc.; 1999: ) Source: Colon, Rectum, and Anus, Schwartz's Principles of Surgery, 10e Citation: Brunicardi F, Andersen DK, Billiar TR, Dunn DL, Hunter JG, Matthews JB, Pollock RE. Schwartz's Principles of Surgery, 10e; 2014 Available at: Accessed: October 08, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved


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