congenital dyserythropoietic anemia type 2 (Monarch Disease Ontology id MONDO_0009134) can be described as follows. Congenital dyserythropoietic anemia type II (CDA II) is the most common form of CDA characterized by anemia, jaundice and splenomegaly and often leading to liver iron overload and gallstones. Also known as: CDA II, CDA type 2, CDA type II, SEC23B-CDG, dyserythropoietic anemia, congenital, type II, hereditary erythroblastic multinuclearity with a positive acidified-serum test (hempas).