[Adult multilocular cystic nephroma simulating a kidney carcinoma]

The multilocular cystic nephroma is a rare benign renal tumour which has its origin in the metanephrogenic blastema. As to the frequency it occurred in adults and children approximately share and share alike. It is reported on a 54-year-old woman with a right-sided multilocular cystic nephroma, who was operated on under the clinical suspicion of a renal carcinoma.