title: A left circum-aortic renal vein aneurysm.
abstract: A well-defined, slow-flowing vascular lesion was found incidentally by Doppler abdominal sonography in the left renal hilar region of a 36-year-old Taiwanese woman. Clinically, the physical examination and laboratory screening were unremarkable. A magnetic resonance angiography of the area near the renal hilum showed a saccular mass (3.5 x 3.1 x 2.5 cm) embracing the aorta by the anterior and posterior branch of the aneurysm originating from the left renal vein to the inferior vena cava. However, the patient refused further invasive intervention and has since been examined periodically by ultrasonography for 18 months without increasing size or symptoms.
authors.affiliation: Department of Surgery, Tri-Service General Hospital, Taipei, Taiwan.
authors.forename: Ta-Chin
authors.initials: TC
authors.lastname: Lin
authors.forename: Chang-Min
authors.initials: CM
authors.lastname: Lin
authors.forename: Huang-Ching
authors.initials: HC
authors.lastname: Chang
authors.forename: Chien-Chang
authors.initials: CC
authors.lastname: Kao
authors.forename: Guang-Huan
authors.initials: GH
authors.lastname: Sun
authors.forename: Tai-Lung
authors.initials: TL
authors.lastname: Cha
mesh_terms: D000328:Adult; D000783:Aneurysm / Q000000981:diagnostic imaging*; D006801:Humans; D033162:Incidental Findings; D018810:Magnetic Resonance Angiography; D008297:Male; D012082:Renal Veins / Q000000981:diagnostic imaging*; D014463:Ultrasonography