title: Association of congenital left renal vein anomalies and unexplained hematuria: multidetector computed tomography findings.
abstract: OBJECTIVE
  To investigate whether congenital renal vein anomalies are involved in the etiology of hematuria by analyzing abdominal multidetector computed tomography (MDCT) results.
  
  
  METHODS
  Six hundred and eighty patients undergoing MDCT for various abdominal pathologies in whom possible causes of hematuria were excluded were retrospectively assessed in terms of left renal vein anomalies, such as circumaortic left renal vein (CLRV), retroaortic left renal vein (RLRV) and multiple renal vein (MRV). Patients with CLRV, RLRV or MRV and patients with normal left renal veins were compared in terms of the presence of hematuria.
  
  
  RESULTS
  Left renal vein anomalies were detected in 100 patients (14.7%). RLRV, CLRV and MRV were identified in 5.4, 2.5 and 6.8% of patients, respectively. Hematuria was determined in 8.1% of patients with an RLRV anomaly and in 10.5% of patients with no RLRV anomaly (p=0.633). Hematuria was detected in 23.5% of patients with a CLRV anomaly and 10.1% of those without (p=0.074), and in 21.7% of patients with an MRV anomaly and 9.6% of those without (p=0.009).
  
  
  CONCLUSIONS
  In addition to increasing risk of complication during retroperitoneal surgery, numeric congenital renal vein anomalies are also significant in terms of leading to clinical symptoms such as hematuria.
authors.affiliation: Department of Radiology, Canakkale Onsekiz Mart University, Canakkale, Turkey.
authors.forename: Mustafa
authors.initials: M
authors.lastname: Resorlu
authors.forename: Abdullah
authors.initials: A
authors.lastname: Sariyildirim
authors.forename: Berkan
authors.initials: B
authors.lastname: Resorlu
authors.forename: Eyup Burak
authors.initials: EB
authors.lastname: Sancak
authors.forename: Fatma
authors.initials: F
authors.lastname: Uysal
authors.forename: Gurhan
authors.initials: G
authors.lastname: Adam
authors.forename: Alpaslan
authors.initials: A
authors.lastname: Akbas
authors.forename: Nilufer
authors.initials: N
authors.lastname: Aylanc
authors.forename: Murat Tolga
authors.initials: MT
authors.lastname: Gulpinar
authors.forename: Ozan
authors.initials: O
authors.lastname: Karatag
authors.forename: Huseyin
authors.initials: H
authors.lastname: Ozdemir
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006417:Hematuria / Q000000981:diagnostic imaging* / Q000209:etiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D061330:Multidetector Computed Tomography; D011237:Predictive Value of Tests; D012082:Renal Veins / Q000002:abnormalities / Q000000981:diagnostic imaging*; D012189:Retrospective Studies; D018570:Risk Assessment; D012307:Risk Factors; D014564:Urogenital Abnormalities / Q000150:complications / Q000000981:diagnostic imaging*; D055815:Young Adult