Mondo Description Any Fanconi syndrome in which the cause of the disease is a mutation in the HNF4A gene.

Uniprot Description A disease characterized by Fanconi syndrome associated with a beta cell phenotype of neonatal hyperinsulinism with macrosomia and young onset diabetes. Fanconi syndrome is a proximal tubulopathy resulting in generalised aminoaciduria, low molecular weight proteinuria, glycosuria, hyperphosphaturia and hypouricemia. Some FRTS4 patients have nephrocalcinosis, renal impairment, hypercalciuria with relative hypocalcemia, and hypermagnesemia.