Anemia, Congenital Dyserythropoietic, Type Ii, also known as congenital dyserythropoietic anemia type ii, is related to cowden syndrome 7 and congenital dyserythropoietic anemia, and has symptoms including icterus An important gene associated with Anemia, Congenital Dyserythropoietic, Type Ii is SEC23B (SEC23 Homolog B, COPII Coat Complex Component), and among its related pathways/superpathways are Metabolism of proteins and Class I MHC mediated antigen processing and presentation. Affiliated tissues include bone marrow and liver, and related phenotypes are reticulocytosis and splenomegaly