Ghosal hematodiaphyseal dysplasia syndrome (GHDD) is a rare disorder characterized by increased bone density (predominantly diaphyseal) and aregenerative corticosteroid-sensitive anemia. The disease is Monarch Disease Ontology term MONDO_0009274 (ghosal hematodiaphyseal dysplasia). Also known as: Ghosal hematodiaphyseal syndrome, Ghosal syndrome, diaphyseal dysplasia-anemia syndrome.