Multicystic nephroma: a rare entity.

Multicystic nephroma is a rare renal pathology, which is characterized usually by a unilateral renal mass with multiple thin-walled cysts divided by septa. We report the case of a boy aged 2 years, who was diagnosed in utero with an abdominal cystic lesion during routine antenatal ultrasonography examination. The patient underwent a nephrectomy, and diagnosis of cystic nephroma was confirmed by histology.