familial juvenile hyperuricemic nephropathy type 2 (Monarch Disease Ontology term MONDO_0013128) is a rare autosomal dominantly inherited disease of childhood characterized by hypoproliferative anemia, hyperuricemia and slowly progressing kidney failure due to dysregulation of the renin-angiotensin system (RAS). Also known as: ADTKD-REN, FJHN type 2, REN familial juvenile hyperuricemic nephropathy, REN-associated FJHN, REN-associated familial juvenile hyperuricemic nephropathy, REN-associated kidney disease, autosomal dominant tubulointerstitial kidney disease due to mutations in REN, familial juvenile hyperuricemic nephropathy caused by mutation in REN.