The authors report a case of transcaval ureter complicated by acute obstructive pyelonephritis in a 54-year-old patient. Transcaval ureter is a rare congenital malformation of the infra-renal inferior vena cava (IRIVC) in which the right ureter passes through a venous ring composed of localized duplication of the vena cava due to persistence of the right posterior cardinal and supracardinal veins.
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Computed tomographic appearance of transcaval ureter in two dogs and three cats: A novel CVC congenital malformation.
Front Vet Sci
September 2022
Alphavet Veterinary Diagnostic Imaging, Kifisia, Athens, Greece.
Transcaval ureter is a rarely reported human congenital malformation of the prerenal segment of the inferior vena cava (IVC) not yet reported in veterinary medicine. The objective of this multicenter retrospective case series study was to describe the computed tomography (CT) features of transcaval ureters in dogs and cats. Patients referring to pre- and post-contrast CT exams of the abdomen and presenting this abnormality were retrospectively included.
View Article and Find Full Text PDFAsymptomatic Obstructive Ureterolithiasis Due to a Periureteral Venous Ring.
J Endourol Case Rep
December 2020
Department of Urology, University of Florida College of Medicine, Gainesville, Florida, USA.
Periureteral venous rings are a rare congenital anomaly involving the inferior vena cava (IVC) and the right ureter, where the ureter courses through a venous ring made by the duplication of the IVC during embryogenesis. This anatomic anomaly is also referred to as a transcaval ureter. Although most patients are asymptomatic and radiographic findings are incidental, some patients can be symptomatic.
View Article and Find Full Text PDFInferior Vena Cava Filter Erosion Causing Symptomatic Obstructive Hydronephrosis.
J Endourol Case Rep
August 2016
Department of Urology, University of Kansas, Kansas City, Kansas.
Background: Transcaval inferior vena cava (IVC) filter penetration involving the urinary tract is rare, but has been previously reported. We herein present unique management of symptomatic hydronephrosis secondary to erosion of an IVC filter limb into the lumen of the proximal right ureter.
Case Presentation: A 59-year-old woman presented with abdominal and right flank pain in October 2015 and was found to have right hydronephrosis, apparently secondary to obstruction from erosion of an IVC filter limb into the proximal right ureter.
Transcaval Ureter: Multidetector Computed Tomography Demonstration.
Urology
July 2015
Department of Biomedical Sciences and Morphologic and Functional Imaging, Policlinico "G. Martino", University of Messina, Messina, Italy.
Transcaval ureter is a rare congenital anomaly characterized by an inferior cava vein duplication producing a vascular ring around the right ureter, usually determining hydroureteronephrosis. The knowledge of this vascular anomaly on imaging examinations permits to avoid erroneous diagnosis of retroperitoneal masses or adenopathy and preoperatively advise the surgeon of potential sources of complications. We describe a case of transcaval ureter studied with multidetector computed tomography.
View Article and Find Full Text PDFTranscaval ureter: a rare embryological anomaly causing obstructive uropathy.
BMJ Case Rep
February 2015
Department of Surgery, Rockhampton Base Hospital, Rockhampton, Queensland, Australia.
A 21-year-old woman presented with a longstanding history of episodic right flank pain related to fluid consumption and recurrent urinary tract infections. On examination, there was right costovertebral angle tenderness. Renal tract ultrasound demonstrated hydronephrosis and CT urography confirmed transcaval ureter.
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