Imerslund-Grasbeck Syndrome 2, also known as megaloblastic anemia, norwegian type, is related to imerslund-grasbeck syndrome 1 and megaloblastic anemia. An important gene associated with Imerslund-Grasbeck Syndrome 2 is AMN (Amnion Associated Transmembrane Protein). Affiliated tissues include kidney and lung, and related phenotypes are proteinuria and renal insufficiency