# Bilateral Discoid Medial Menisci With a Parameniscal Cyst: A Case Report

## TL;DR

A 13-year-old boy with rare bilateral discoid medial menisci and a parameniscal cyst was successfully treated with surgical preservation techniques.

## Contribution

This case report presents a rare bilateral discoid medial meniscus with a parameniscal cyst and its successful surgical management.

## Key findings

- Bilateral discoid medial menisci with parameniscal cysts are exceptionally rare and can cause medial knee pain in young athletes.
- Surgical techniques like saucerization and meniscal repair can effectively treat this condition and restore knee function.
- Early recognition and preservation-focused treatment are crucial to prevent long-term complications.

## Abstract

Bilateral discoid medial menisci are an exceptionally rare anatomical variant, and their coexistence with a parameniscal cyst has only been described in isolated cases. We present the case of a 13‐year‐old male with activity‐related medial knee pain initially affecting the right knee. Imaging confirmed an incomplete discoid medial meniscus associated with a parameniscal cyst, which was treated with arthroscopy, open cyst excision, and meniscocapsular repair. A subsequent symptomatic retear required revision saucerization and combined meniscal fixation techniques. Months later, the patient developed similar symptoms in the contralateral knee, where MRI revealed a discoid medial meniscus with a horizontal tear, successfully treated with saucerization and partial meniscectomy. At final follow‐up, the patient remained pain‐free and fully active. This case highlights the importance of early recognition and preservation‐focused surgical treatment for this rare bilateral presentation.

Bilateral discoid medial menisci are extremely rare and may present with nonspecific symptoms in young athletes. Early recognition and meniscal preservation with saucerization and repair can successfully restore knee function and prevent long‐term complications.

Rare bilateral discoid medial menisci with parameniscal cyst: clinical presentation, imaging, and arthroscopic management