[Two cases of multilocular cystic nephroma, a rare benign tumor of the kidney].

We present two case reports of multilocular cystic nephroma (MCN). MCN is a rare benign tumor of the kidney that is difficult to differentiate from malignant tumor by diagnostic imaging (ultrasound, CT) and cytology on fine-needle aspiration. This is why most cases end up with nephrectomy and diagnosis is based on the histopathological findings. In one of our two cases, a nephrectomy was performed, and in the other the tumor was resected from the kidney. The origin of MCN is uncertain, and only about 200 cases have been reported in the literature.