# Retrorectal Hernia: A Rare Cause of Constipation Diagnosed on Magnetic Resonance (MR) Defecography

## TL;DR

A rare case of sigmoid colon herniation causing constipation was diagnosed using magnetic resonance imaging.

## Contribution

The paper presents a rare clinical case of retrorectal herniation diagnosed via MR defecography.

## Key findings

- Retrorectal herniation of the sigmoid colon was identified as a cause of constipation.
- MR defecography was effective in diagnosing the herniation in an elderly female patient.

## Abstract

Retrorectal herniation of the sigmoid colon is a rare condition characterized by the protrusion of a segment of the colon into the pre-sacral space and posterior to the rectum. This herniation occurs through a defect in the peritoneum, which may have developed secondary to congenital mechanisms, surgery, trauma, or inflammatory processes. Here, a case of retrorectal herniation of the sigmoid colon in an elderly female patient presenting with constipation is reported, with a review of the literature.