Abstract
IntroductionWilms tumor(nephroblastoma) is the most common renal tumor in childhood.The most frequent anomalies and syndromes associated with this tumor involve the genitourinary tract. The occurrence of Wilms tumor with renal ectopia is rare.When present,Wilms tumor is usually found in association with other forms of renal ectopia like horseshoe kidneys or crossed fused renal ectopia. However, reports of the occurrence of Wilms tumor in unilateral pelvic renal ectopia is uncommon. We report a case of Wilms tumor in a pelvic left kidney. Presentation of caseA 10 year old girl presented to the out-patient department with a one year history of lower abdominal mass, pain and hematuria. Examination revealed a mass in the suprapubic region. Radiological investigations showed a tumor in a left pelvic kidney. She was managed with preoperative chemotherapy, surgery and adjuvant chemotherapy. Histopathologic examination of the nephrectomy specimen confirmed the diagnosis of nephroblastoma. DiscussionThe occurrence of Wilms tumor in association with renal ectopia is rare. There are few reports of tumors arising in unilateral pelvic ectopic kidneys. A multi-modal treatment approach involving the use of chemotherapy, surgery and radiotherapy (for high-risk tumors) in the management of Wilms tumor gives good outcome. ConclusionTumors arising from a pelvic kidney should be considered as part of the differential diagnosis of lower abdominal masses in children.
Highlights
Wilms tumor(nephroblastoma) is the most common renal tumor in childhood.The most frequent anomalies and syndromes associated with this tumor involve the genitourinary tract
The majority of anomalies and syndromes associated with Wilms tumor involve the genitourinary tract, including renal ectopia, ureteral duplication, renal hypoplasia, cryptorchidism, hypospadias, and disorder of sexual development [2]
We present a rare case of nephroblastoma associated with a left ectopic kidney in a 10-year-old child successfully treated with preoperative chemotherapy followed by surgery and adjuvant chemotherapy
Summary
Wilms tumor(nephroblastoma) is the most common renal tumor in childhood.The most frequent anomalies and syndromes associated with this tumor involve the genitourinary tract. Reports of the occurrence of Wilms tumor in unilateral pelvic renal ectopia is uncommon. We report a case of Wilms tumor in a pelvic left kidney. Radiological investigations showed a tumor in a left pelvic kidney. She was managed with preoperative chemotherapy, surgery and adjuvant chemotherapy. DISCUSSION: The occurrence of Wilms tumor in association with renal ectopia is rare. There are few reports of tumors arising in unilateral pelvic ectopic kidneys. CONCLUSION: Tumors arising from a pelvic kidney should be considered as part of the differential diagnosis of lower abdominal masses in children
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