Fabella

Case contributed by Mohammad Taghi Niknejad
Diagnosis certain

Presentation

Work up for knee pain.

Patient Data

Age: 17 years
Gender: Male
x-ray

There is an accessory ossicle at the posterolateral aspect of the femur's distal portion in the gastrocnemius muscle's lateral head insertion, known as fabella.

Case Discussion

Fabella means "little bean" in Latin, could be seen in ~20% of the population, and may occasionally be found in the medial head of the gastrocnemius.

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