title: Wilms' tumor in a horseshoe kidney.
abstract: The incidence of horseshoe kidney is about 1 in 400 cases. The presence of Wilms' tumor with a horseshoe kidney is unusual, and the occurrence of Wilms' tumor in a horseshoe kidney is estimated at 0.4 to 0.9% of all Wilms' tumors. We report the case of a 5-year-old boy who presented with a stage IV Wilms' tumor in a horseshoe kidney. The patient was treated with preoperative chemotherapy followed by surgical resection and adjuvant chemotherapy. This case illustrates the role of preoperative chemotherapy for preserving renal function and aims to highlight the multimodality treatment of Wilms' tumor.
authors.affiliation: Department of Urology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea.
authors.forename: Sang Hun
authors.initials: SH
authors.lastname: Lee
authors.forename: Min Ho
authors.initials: MH
authors.lastname: Bae
authors.forename: Sung Ho
authors.initials: SH
authors.lastname: Choi
authors.forename: Jin Seok
authors.initials: JS
authors.lastname: Lee
authors.forename: Young Sam
authors.initials: YS
authors.lastname: Cho
authors.forename: Kwan Joong
authors.initials: KJ
authors.lastname: Joo
authors.forename: Chil Hun
authors.initials: CH
authors.lastname: Kwon
authors.forename: Heung Jae
authors.initials: HJ
authors.lastname: Park