This site is targeted at medical and radiology professionals, contains user contributed content, and material that may be confusing to a lay audience. Use of this site implies acceptance of our Terms of Use.

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.

Updating… Please wait.


Error Unable to process the form. Check for errors and try again.

Alert_accept Thank you for updating your details.