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.

PlayAdd to Share
Full screen case
Case with hidden diagnosis
Full screen case with hidden diagnosis

Case Information:

rID: 13442
Diagnostic certainty: Certain
Tag: variant
Inclusion in quiz mode: Included

Updating… Please wait.


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

Alert_accept Thank you for updating your details.