Amyotrophic lateral sclerosis classification

Amyotrophic lateral sclerosis Microchapters
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Charmaine Patel, M.D. [2]Mohamadmostafa Jahansouz M.D.[3]

Overview

ALS is classified into two sub-groups: Familial ALS and Sporadic ALS.

Classification

• Familial ALS accounts for approximately 5%-10% of all ALS cases and is caused due to genetic factors.
• Sporadic ALS accounts for the remaining 90%-95% of ALS with no known cause.