Conclusion
An anatomic study has shown that anal glands penetrated the internal sphincter in half of a series of 44 patients.
In an unselected serieś of 30 consecutive patients with anal fistula, the histologic appearance in 21 strongly suggested that the cause of the disease was infection in anal glands.
An operative technic has been described which was used in 38 consecutive cases. The aim of this method is to eradicate the source of the disease which is believed to lie between the internal and external sphincters,without dividing the external sphincter muscle. This can be quite a difficult technical procedure in some cases and, at present, it is not generally recommended for low fistulas; it is of great value, however, in dealing with high fistulas as it spares the mutilation of extensive sphincter division.
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Read at the meeting of the American Proctologic Society, Pittsburgh, Pennsylvania, June 21 to 24, 1961.
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Parks, A.G. Etiology and surgical treatment of fistula-in-ano. Dis Colon Rectum 6, 17–22 (1963). https://doi.org/10.1007/BF02617227
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DOI: https://doi.org/10.1007/BF02617227