Parameniscal cyst and meniscal tear (ultrasound)

Case contributed by Maulik S Patel
Diagnosis almost certain

Presentation

Right knee trauma about three weeks back. Complaining of pain on the lateral aspect of the knee.

Patient Data

Age: 20 years
Gender: Male

There is a thin-walled anechoic cyst (12 x 10 x 2 mm) abutting the lateral meniscus body region. There is a fluid cleft extension from this cyst into the lateral meniscus.

The lateral collateral ligament, biceps femoris tendon, the iliotibial band are intact with a normal echo pattern.

There is a thin-walled anechoic cyst (12 x 10 x 2 mm) abutting the lateral meniscus body region. There is a fluid cleft extension from this cyst into the lateral meniscus.

The lateral collateral ligament, biceps femoris tendon, the iliotibial band are intact with a normal echo pattern.

Case Discussion

A young male presented with post-traumatic lateral knee region pain. Ultrasound findings favor a lateral parameniscal cyst with a peripheral meniscal tear.

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