This sign is seen in all the following disorders EXCEPT?: (A) Duchenne muscular dystrophy, (B) Becker's muscular dystrophy, (C) Landouzy-Dejerine disease, (D) Spinal muscular atrophy
Answer is D. d. Spinal muscular atrophyThe given picture shows a child using his upper limb to help him get up from sitting position; This is called 'Gower sign'