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Monday, May 24, 2010

Piriformis syndrome is an uncommon cause of buttock and hip pain due to entrapment of the sciatic nerve by the piriformis muscle at the greater sciatic notch.
The coronal T1-weighted images demonstrate enlargement of the right piriformis muscle (arrow).
The corresponding axial T2-weighted image confirms enlargement of the right piriformis muscle (arrow).

A coronal inversion recovery weighted image demonstrated no abnormal signal intensity within either piriformis muscle (arrows).



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