# Misdiagnosed as a perianal abscess: case report of perianal endometriosis

## TL;DR

A rare case of perianal endometriosis was initially misdiagnosed as a perianal abscess, but confirmed through surgery and histopathology.

## Contribution

Highlights a rare clinical case of perianal endometriosis misdiagnosed as an abscess, emphasizing the need for accurate diagnosis.

## Key findings

- The patient was initially misdiagnosed with a perianal abscess.
- Histopathological examination confirmed the diagnosis of perianal endometriosis.
- The case underscores the challenges in diagnosing rare forms of endometriosis.

## Abstract

Perianal endometriosis represents a rare form of endometriosis occurring outside the pelvic cavity. Owing to its infrequency in clinical practice, this condition is highly susceptible to misdiagnosis and inappropriate treatment. This case report details a young female patient who was erroneously diagnosed with a perianal abscess. We conducted a para-anal mass resection under spinal anesthesia, and subsequent histopathological examination definitively confirmed the diagnosis of perianal endometriosis.