Metal Metabolism Disorder, also known as metal metabolism, inborn errors, is related to occipital horn syndrome and atransferrinemia. An important gene associated with Metal Metabolism Disorder is HFE (Homeostatic Iron Regulator), and among its related pathways/superpathways are Transport of inorganic cations/anions and amino acids/oligopeptides and Disorders of transmembrane transporters. The drug Iron has been mentioned in the context of this disorder. Related phenotypes are homeostasis/metabolism and liver/biliary system