Teaching NeuroImages: An Imaging Clue in a Boy With Developmental Delay

6 year old boy of non-consanguineous parents presented with global developmental delay since infancy with history of two episodes of seizures in early childhood. Examination, showed hyperactivity subnormal cognition, tight heel cords, weakness of limbs along with hypotonia, and sluggish tendon reflexes. Serum CK was 2138 IU/l.