8B61.1
Late infantile spinal muscular atrophy, Type II
Atrofia muscular espinal infantil tardia, tipo II
CategoryDefinition
In SMA type 2, muscle weakness is seen between the ages of 6 to 18 months. The child can sit unsupported, but cannot stand or walk independently. Death usually occurs between 2 years of age and young adulthood.
Index Terms
Late infantile spinal muscular atrophy, Type IIIntermediate type spinal muscular atrophyintermediate type SMA - [spinal muscular atrophy]late infantile SMA - [spinal muscular atrophy], Type IItype 2 SMA - [spinal muscular atrophy]