A boy presented with weakness in lower limbs, calf hyperophy, positive Gower's sign and an elevated CPK value of 10,000. The most likely diagnosis is:: (A) Duchenne Muscular Dystrophy, (B) Spinal Muscular Atrophy, (C) Myotonia congenita, (D) Myotonic Dystrophy
Answer is A. A male child presenting with lower limb weakness, calf hyperophy, Postive Gower's sign associated with high levels of CPK suggests the diagnosis of DMD. Ref: Essential of Pediatrics By O P Ghai, 6th Edition, Page 547-548