Sakati-Nyhan syndrome /sä′kä·tē·nī′han/ [Nadia Sakati, 20th-century American pediatrician; William Leo Nyhan, American pediatrician, b. 1926] , an autosomal-dominant type of acrocephalopolysyndactyly characterized by hypoplastic tibias and deformed, displaced fibulas. Also called acrocephalopolysyndactyly, type III. See also Carpenter’s syndrome, Goodman’s syndrome, Noack’s syndrome.