Anorectal Abscess and Fistula

Chapter

Abstract

  • Anorectal abscess and fistula-in-ano represent different stages of anorectal suppuration.

  • The abscess is the acute inflammatory event.

  • Ducts from anal glands empty into the anal crypts at the level of the dentate line.

  • Anal glands penetrate into deeper tissue: 80 % submucosal, 8 % internal sphincter, 8 % conjoined longitudinal muscle, 2 % intersphincteric space, and 1 % penetrate the internal sphincter.

  • Understanding the potential anorectal spaces (Table 13.1) is essential for successful treatment of anorectal suppuration.

  • Table 13.2 lists the etiologies of anorectal abscesses. 90 % are from nonspecific cryptoglandular suppuration.

  • Abscesses result from obstruction of the anal glands (Park’s cryptoglandular theory published in 1961).

Keywords

Acquire Immune Deficiency Syndrome Internal Opening Internal Sphincter Sphincter Muscle Transsphincteric Fistula 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Reference

  1. Parks AG. Pathogenesis and treatment of fistula-in-ano. Br Med J. 1961;1(1):763–769.Google Scholar

Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Division of Colorectal SurgeryJewish General HospitalMontrealCanada

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