title: Ureteric Obstruction From Malignant Melanoma in Both Right Double Moiety and Left Single Moiety Ureters.
abstract: We report the first documented case of malignant melanoma obstructing ureters of both moieties of a duplex kidney and contralateral single moiety ureter in a 51-year-old male. The patient presented with fever, coryzal symptoms, and liver function test derangement several years after 2 superficial spreading melanomas were excised with clear margins. Ultrasonography demonstrated hydronephroureter in both moieties of a complete right-sided duplex kidney. Retrograde pyelograms showed bilateral hydronephroureter and filling defects in all 3 ureters. Biopsied tumor cells were positive for S100, Melan A, and HMB45. Cutaneous melanoma metastasizing to ureters is a rare phenomenon and can present a diagnostic challenge to clinicians if clinically silent.
authors.affiliation: Department of Urology, Gosford Hospital, Gosford, NSW, Australia. Electronic address: brayden.march@gmail.com.
authors.forename: Brayden
authors.initials: B
authors.lastname: March
authors.affiliation: Department of Urology, Gosford Hospital, Gosford, NSW, Australia.
authors.forename: Ross John Spero
authors.initials: RJS
authors.lastname: Calopedos
authors.affiliation: Department of Urology, Gosford Hospital, Gosford, NSW, Australia.
authors.forename: Edward
authors.initials: E
authors.lastname: Latif
authors.affiliation: Department of Urology, Gosford Hospital, Gosford, NSW, Australia.
authors.forename: Rupert
authors.initials: R
authors.lastname: Ouyang