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Postmortem perianal findings in children

J McCann1, D Reay, J Siebert

  • 1Department of Pediatrics, University of California-Davis Medical Center, Sacramento 95817, USA.

The American Journal of Forensic Medicine and Pathology
|December 1, 1996
PubMed
Summary
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Postmortem anal dilation and pectinate line exposure in children are not definitive signs of sexual abuse. Further research is needed to understand these findings in forensic pediatric cases.

Area of Science:

  • Forensic Pathology
  • Pediatric Medicine
  • Child Abuse Investigation

Background:

  • Postmortem anal dilation and exposed pectinate lines in children raise concerns about potential sexual abuse.
  • Existing literature lacks comprehensive data on these findings in pediatric autopsies.

Purpose of the Study:

  • To investigate the prevalence and characteristics of anal findings in deceased children.
  • To determine if anal dilation or pectinate line exposure are reliable indicators of sexual abuse.

Main Methods:

  • A multicenter, collaborative study involving 65 pediatric autopsies.
  • Standardized protocols and photography were used to document anal findings.
  • Data collected included demographics, cause of death, and detailed anal examination.

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Main Results:

  • 74% of subjects showed some anal sphincter dilation; 32% had exposed pectinate lines.
  • Anal orifice size varied with age, applied traction, and CNS injury history.
  • No fissures, lacerations, hemorrhoids, or scars were observed.

Conclusions:

  • Anal dilation alone is not a sufficient marker for prior sexual abuse in children.
  • Exposed pectinate lines should not be misidentified as anal verge tears or fissures.
  • Further studies on children with confirmed prior sexual abuse are warranted.