Monarch Disease Ontology id MONDO_0008846 (atransferrinemia) can be described as follows. Congenital atransferrinemia is a very rare hematologic disease caused by a transferrin (TF) deficiency and characterized by microcytic, hypochromic anemia (manifesting with pallor, fatigue and growth retardation) and iron overload, and that can be fatal if left untreated. Also known as: congenital atransferrinemia, congenital hypotransferrinemia, familial hypotransferrinemia, hereditary atransferrinemia.