May have palpable, tender mass over<unk>  muscle
Consider when patient has classic signs of lumbar radiculopathy with negative provocative testing, normal neurologic exam
Provocative testing with Freiburgs test: placing hip in extension and internal rotation, and then resisting external rotation
Pain or sciatic symptoms yield a positive test
Consider XR or outpatient MRI to rule out other causes of gluteal and sacroiliac pain
Pain or sciatic symptoms yield a positive test
Piriformis syndrome
Acute Trauma
Pronator teres syndrome
Femur fracture
Carpal tunnel syndrome
Proximal
Cauda equina syndrome
Intracapsular