brain, spinal cord, and nerve disorders
Hemifacial Spasm
Diagnosis of Hemifacial Spasm
Neurologic examination Magnetic resonance imaging Hemifacial spasm is diagnosed when doctors see the spasms. Magnetic resonance imaging (MRI) should be done to rule out tumors, other structural abnormalities, and multiple sclerosis, which can cause similar symptoms. Also, MRI can usually detect the abnormal loop of artery pressing against the nerve. 