title: Anterior Nutcracker Syndrome with Left Gonadal Vein Varicosities on Multiphasic Computed Tomography: An Unexpected Cause of Pyeloureteral Junction Obstruction.
abstract: The anterior nutcracker syndrome is defined by the compression of the left renal vein between the aorta and superior mesenteric artery, usually related to the occurrence of hematuria. We report the case of an uncommon complication of the nutcracker syndrome. A 75-year-old woman was referred to our institution for left flank pain without hematuria. Multiphasic computer tomography urography showed a condition of left renal vein entrapment between the aorta and superior mesenteric artery with the development of left gonadal vein varicosities at the level of the renal hilum; a pyeloureteral junction compression with dilation of the pyelocalyceal system coexisted. To our knowledge, this is the first report of the association between nutcracker syndrome and pyeloureteral junction obstruction.
authors.affiliation: Department of Radiology, University of Bologna, Sant'Orsola-Malpighi Hospital, Bologna, Italy.
authors.forename: Maddalena
authors.initials: M
authors.lastname: Di Carlo
authors.forename: Caterina
authors.initials: C
authors.lastname: Gaudiano
authors.forename: Fiorenza
authors.initials: F
authors.lastname: Busato
authors.forename: Simone
authors.initials: S
authors.lastname: Pucci
authors.forename: Riccardo
authors.initials: R
authors.lastname: Schiavina
authors.forename: Valerio
authors.initials: V
authors.lastname: Vagnoni
authors.forename: Rita
authors.initials: R
authors.lastname: Golfieri
mesh_terms: D000368:Aged; D005260:Female; D021501:Flank Pain; D006417:Hematuria; D006801:Humans; D021782:Multicystic Dysplastic Kidney; D059228:Renal Nutcracker Syndrome; D012082:Renal Veins