Brief review: Piriformis syndrome: etiology, diagnosis, and management Jankovic D, et al. Can J Anaesth. 2013 Oct;60(10):1003-1012. Epub 2013 Jul 27. Abstract PURPOSE: In this narrative review, we aim to provide the pathophysiology and diagnostic criteria of the piriformis syndrome (PS), an underdiagnosed cause of buttock and leg pain that can be difficult to treat. […]