# Descending Colon Leiomyoma: A Case Report and Literature Review

## TL;DR

A 32-year-old woman with abdominal pain was diagnosed with a rare colonic leiomyoma, a benign smooth muscle tumor, after undergoing surgery and histopathological analysis.

## Contribution

This paper presents a rare clinical case of descending colon leiomyoma and contributes to the limited literature on this condition.

## Key findings

- The patient had a left colonic mass confirmed as a leiomyoma through histopathology.
- Leiomyomas are rare in the colon and often found incidentally or due to nonspecific symptoms.
- Laparoscopic surgery was effective for diagnosis and treatment in this case.

## Abstract

Leiomyoma is defined as a benign proliferation of smooth muscle cells. Smooth muscle tumors are considered the second-most common mesenchymal neoplasm in the gastrointestinal (GI) tract. It typically occurs incidentally in the large bowel. Colonic leiomyomas are considered to be very rare and commonly found in the descending or sigmoid colon. We report a case of a 32-year-old woman with no previous medical illness who presented with on-and-off abdominal pain, was found to have a left colonic mass, and underwent laparoscopic left hemicolectomy, with the final histopathological assessment revealing smooth muscle leiomyoma.