Wilms' tumor in horseshoe kidney: Presentation due to ureteropelvic junction obstruction

Abstract

Children with horseshoe kidney usually develop urinary tract symptoms and often require operative correction of the anomaly. The incidence of Wilms' tumor in horseshoe kidney is higher than that for the general population. We present the case of a child whose Wilms' tumor was diagnosed early because of ureteropelvic junction obstruction secondary to a horseshoe kidney. A high index of suspicion should be maintained for Wilms' tumor in any child with a horseshoe kidney.

Congenital intrarenal teratoma arising from a horseshoe kidney

“…The differential diagnosis of antenatal retroperitoneal mass include Wilms' tumor [7], congenital mesoblastic nephroma [8], neonatal cystic neuroblastoma [9], and teratoma. Wilms' tumor is more common in patients with horseshoe kidney [7].…”

“…Wilms' tumor is more common in patients with horseshoe kidney [7]. Patients with a horseshoe kidney have a 1.8-to 7.9-fold increased risk for Wilms' tumor [7].…”

Primary renal teratoma: a rare entity

“…The differential diagnosis of intrarenal teratoma include Wilms’ tumor [22,23]. The both of these tumors originate from the mesodermal metanephrogenic blastema, and in histological examinations they are similar.…”

Giant Mature Adrenal Cystic Teratoma in an Infant

“…The differential diagnosis of retroperitoneal teratomas include ovarian tumors, renal cysts, adrenal tumors, retroperitoneal fibromas, Wilms’ tumor, sarcomas, hemangiomas, neonatal cystic neuroblastoma, xantogranuloma, congenital mesoblastic nephroma, enlarged lymph nodes and perirenal abscess (8, 9, 10, 11). Plain abdominal film shows a calcification.…”