How is the underlying disorder diagnosed in pediatric rectal prolapse?

Updated: Nov 12, 2018
  • Author: Jaime Shalkow, MD, FACS; Chief Editor: Carmen Cuffari, MD  more...
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The primary care physician should initially approach rectal prolapse as a symptom rather than a specific disease entity and should always search for an underlying disorder. Anatomic causes such as Hirschsprung disease and history of imperforate anus repair should be sought. Inquire about a history of constipation, diarrhea, parasitic infections, polyps, or anal stenosis.

High-resolution ultrasonography and magnetic resonance imaging (MRI) provide excellent depiction of the pelvic anatomy and are helpful to illustrate functional changes. Contrast enema, proctosigmoidoscopy, video defecography, anal manometry, electromyography, and anal endosonography may also be useful.

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