title: Ureteropelvic Junction Obstruction Secondary to Metastatic Relapse of Breast Cancer.
abstract: We describe the case of a 53-year-old woman with a history of localized breast cancer who presented with flank pain and was found to have new-onset obstruction of the left ureteropelvic junction. Although initially believed to be unrelated to her history of prior malignancy, intraoperative assessment of tissue from the ureteropelvic junction during planned laparoscopic pyeloplasty revealed urothelial infiltration by carcinoma of breast origin.
authors.affiliation: Department of Urology, Arthur Smith Institute for Urology, North Shore Long Island Jewish Health System, 405 Lakeville Road, Suite M41, New Hyde Park, NY 11040, USA.
authors.forename: Paras H
authors.initials: PH
authors.lastname: Shah
authors.affiliation: Department of Urology, Arthur Smith Institute for Urology, North Shore Long Island Jewish Health System, 405 Lakeville Road, Suite M41, New Hyde Park, NY 11040, USA.
authors.forename: Alex T
authors.initials: AT
authors.lastname: Smith
authors.affiliation: Department of Urology, Arthur Smith Institute for Urology, North Shore Long Island Jewish Health System, 405 Lakeville Road, Suite M41, New Hyde Park, NY 11040, USA.
authors.forename: David A
authors.initials: DA
authors.lastname: Leavitt
authors.affiliation: Department of Urology, Arthur Smith Institute for Urology, North Shore Long Island Jewish Health System, 405 Lakeville Road, Suite M41, New Hyde Park, NY 11040, USA.
authors.forename: Oksana
authors.initials: O
authors.lastname: Yaskiv
authors.affiliation: Department of Urology, Arthur Smith Institute for Urology, North Shore Long Island Jewish Health System, 405 Lakeville Road, Suite M41, New Hyde Park, NY 11040, USA.
authors.forename: Louis R
authors.initials: LR
authors.lastname: Kavoussi
keywords: Breast cancer metastasis; Hydronephrosis; Ureteropelvic junction obstruction