An 8 year old boy complaints of increasing muscle weakness. On examination, his calves are bulky and show muscle tightening. His serum creatine kinase levels are increasing with age. Which of the following is the most likely diagnosis?
Hereditary sensorimotor neuropathy
Myelin deficiency
Dystrophin deficiency
Congenital myopathy
Answer- C. Dystrophin deficiencyMost likely diagnosis is duchenne Muscular Dystrophy due to Dystrophin deficiency.