Accessory lateral gastrocnemius muscle

Case contributed by Dr Paresh K Desai


Knee trauma.

Patient Data:

Age: 43 years
Gender: Male
Modality: MRI

MRI incidentally detected an accessory belly of the lateral gastrocnemius; The popliteal neurovascular bundle is encased by the medial gastrocnemius and the accessory muscle.

Case Discussion:

Features consistent of accessory lateral gasrocnemius muscle. This anatomical variant may cause popliteal entrapment syndrome.

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