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Internal Sphincter Dysfunction: A Cause of Idiopathic Megacolon

  • R. H. S. Lane
Conference paper

Abstract

Constipation is defined as the infrequent and incomplete passage of faeces per rectum. Megacolon is an uncommon condition in which the bowel is persistently of increased diameter, and is always associated with long-standing constipation (Todd 1961). Two main groups are recognised according to whether or not ganglia are present in the inter- muscular plane of the rectal wall. Their complete absence, even along a short segment of rectum, denotes Hirschsprung’s disease. If ganglia are present the dilated bowel may be secondary to some predisposing factor (Todd 1961), or there may be no apparent organic reason as to why the bowel should be so dilated. This latter condition is termed idiopathic megacolon (Lane and Todd 1977).

Keywords

Chronic Constipation Internal Sphincter Rectal Distension Dilate Bowel Rectal Pressure 
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.

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References

  1. Gowers WR (1877) The automatic action of the sphincter ani. Proc R Soc, Lond 26: 77–84CrossRefGoogle Scholar
  2. Lane RHS (1975) Clinical application of anorectal physiology. Proc R Soc Med 68: 28–30PubMedGoogle Scholar
  3. Lane RHS (1979) Medical dissertation, University of LondonGoogle Scholar
  4. Lane RHS, Todd IP, (1977) Idiopathic megacolon: a review of 42 cases. Br J Surg 64: 305–310CrossRefGoogle Scholar
  5. Smith B, Grace RH, Todd IP (1977) Organic constipation in adults. Br J Surg 64: 313–314PubMedCrossRefGoogle Scholar
  6. Todd IP (1961) Discussion on megacolon and megarectum with the emphasis on conditions other than Hirschsprung’s disease. Proc R Soc Med 54: 1035–1037PubMedGoogle Scholar

Copyright information

© Springer-Verlag 1982

Authors and Affiliations

  • R. H. S. Lane

There are no affiliations available

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