Hinkes B et al. – A 38–year–old female patient had been diagnosed with right kidney aplasia, left kidney dysplasia and significantly impaired renal function during infancy. Deletions of HNF1beta have recently drawn significant attention in pediatric nephrology as an important cause of prenatally hyperechogenic kidneys, renal aplasia and renal hypodysplasia. In contrast, membranous nephropathy represents an often–unaccounted cause of nephrotic syndrome in the adult population. A causative connection between theses two conditions has never been postulated, but is suggestive enough in this case to hypothesize it.