NKX6-2 and Ito hypomelanosis: Here, we demonstrate the potential utility of infection metallomics (24) for the clinical diagnosis of IPA based on the noninvasive detection in urine of the intra- and extracellular siderophore TafC, its hydrolytic product triacetylfusarinine B (TafB) (11), Fc, and a secondary metabolite, Gtx.