Summary
Most fistulas are characterized by the uniform site of the internal or “primary” opening. A series of unusual anal fistulas has been described in which the internal opening was not situated at this usual place. In addition, other lesions resembling anal fistula are mentioned.
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Read at the meeting of the American Proctologic Society, New Orleans, Louisiana, April 17 to 19, 1967.
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Wilson, E. The unusual anal fistula. Dis Colon Rectum 11, 348–355 (1968). https://doi.org/10.1007/BF02616987
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DOI: https://doi.org/10.1007/BF02616987