Foramen magnum meningioma presenting as amyotrophic lateral sclerosis

Amyotrophic lateral sclerosis (ALS) is a progressive, degenerative disease of the nervous system. It affects adults in an age groups and leads to deat h few years after the diagnosis. The etiology is unknown, and there no conv incing medical or surgical therapy. Some diseases can mimic ALS. If diagnos ed early these may be treatable, but if misdiagnosed as ALS and left untrea ted they may be fatal. We present a case of foramen magnum meningioma prese nting clinically as ALS. After surgery, the symptoms disappeared and the ne urological deficits improved.