<prompt> Arias syndrome is also known as:Rotor syndromeDubin johnson syndromeCrigler Najjar syndrome type ICrigler Najjar syndrome type II  <response>: Crigler najjar syndrome type II is also known as arias syndrome, is a hereditary disorder of bilirubin metabolism characterized by unconjugated hyperbilirubinemia due to reduced and inducible activity of hepatic bilirubin glucuronosyltransferase GT. There is paial deficiency of bilirubin uridine diphosphate UDP glucuronosyl transferase. Jaundice is milder than type I and there is no kernicterus. The mode of inheritance is autosomal recessive. Ref: Essentials of Rubins pathology, edited by Emanuel Rubin, Howard M. Reisner, 5th Edition, Page 311 