Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Amyotrophic lateral sclerosis 3
Medically reviewed by Min Clinic Staff | Updated: January 2026
Amyotrophic lateral sclerosis 3: ALS3. An adult-onset form of amyotrophic lateral sclerosis (ALS) inherited in an autosomal dominant manner and caused by mutation in a gene on chromosome 18q21.