Catalog
Late infantile spinal muscular atrophy, Type II
Link to WHO Definition
Late infantile spinal muscular atrophy, Type II – http://id.who.int/icd/entity/867148636
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.