Isolated central hypothyroidism presenting with severe cholestasis, hepatosplenomegaly, and pallor: A case report and review of literature

Prolonged neonatal jaundice has been previously reported in neonates with congenital hypothyroidism. Isolated central hypothyroidism is a rare disease which may be missed by newborn screening programs. Here, we report a case of isolated central hypothyroidism presenting with neonatal hyperbilirubinemia, anemia, and hepatosplenomegaly, which showed marked improvement with levothyroxine supplementation.