A childhood spinal muscular atrophy that has age of onset after 18 months and is characterized by muscle weakness after early childhood and the ability to stand and walk and that has_material_basis_in homozygous or compound heterozygous mutation in the SMN1 gene on chromosome 5q13. (DO)
Monomelic Amyotrophy
spinal muscular atrophy type 0
Spinal Muscular Atrophy with Congenital Bone Fractures +
Spinal Muscular Atrophy with Microcephaly and Mental Subnormality
spinal muscular atrophy with progressive myoclonic epilepsy
Werdnig-Hoffmann disease
Synonyms
Exact Synonyms:
KWS
;
Kugelberg-Welander disease
;
Kugelberg-Welander syndrome
;
SMA III
;
SMA3
;
juvenile muscular atrophy
;
spinal muscular atrophy type 3
;
spinal muscular atrophy type III
;
spinal muscular atrophy, familial
;
spinal muscular atrophy, mild childhood and adolescent form