Wilms' Tumor and Benign Renal Tumor Combined with Hypospadias and Incomplete Orchiocatabasis Appearing Simultaneously in A 10 Months Old Baby

We herein report a case of left renal Wilms’ tumor and right renal hamartoma combined with hypospadias and incomplete testis descent in a 10-month-old boy. In the literature to date, no case has been reported. The preoperative abdominal computerized tomography (CT) scan was suggestive of bilateral nephroblastomas, and clinical diagnosis was bilateral renal tumors with external genitals malformation. Finally, we used B-ultrasonic guided percutaneous biopsy to help determine the nature of bilateral renal tumors. Afterwards, the boy underwent preoperative chemotherapy, surgery (left radical nephrectomy and right wedge excision of the renal tumor) and postoperative chemotherapy. After 3 years of follow-up, there was no evidence of tumor recurrence, the renal function was normal, and the boy’s height, weight and intelligence were also within normal range.