William's syndrome is associated with: (A) Congenital Supravalvular Aoic stenosis, (B) Congenital Subvalvular Aoic stenosis, (C) VSD, (D) ASD
Answer is A. A i.e. Congenital Supravalvular Aoic stenosis William's Syndrome or Idiopathic Hypercalcemia of Infancy It is characterized by: Hypercalcemia d/ t abnormal sensitivity to vitamin D Supravalvular aoic stenosisQ & other congenital defects Mental retardation Elfin facies (Round face with full cheeks & lips)