All of the following may occur in Down&;s syndrome except: (A) Hypothyroidism, (B) Undescended testis, (C) Ventricular septal defect, (D) Brushfield's spots
Answer is B. Congenital or acquired hypothyroidism,brush field spots in iris,and ventricular septal defect IS seen in a case with down syndrome. Undescended testis is not a feature. Reference: Nelson TB of pediatrics 19th edtn pg 402