Document Detail

Infra-renal abdominal aorta agenesis: a case report with emphasis on MR angiography findings.
MedLine Citation:
PMID:  18559895     Owner:  NLM     Status:  MEDLINE    
The purpose of this study is to report a case of infra-renal aorta agenesis with emphasis on the MR angiography (MRA) findings. A 66-year-old woman presented with urinary complaints. Pelvic and abdominal ultrasound showed hydronephrosis secondary to ureteral lithiasis; the distal portion of the abdominal aorta was not identified. Abdominal CT showed that the infra-renal portion of the abdominal aorta was apparently absent. MRI and MRA demonstrated that, after the origin of the renal arteries, the abdominal aorta spontaneously terminated in two lumbar hypertrophic arteries. In addition, MRA showed a dilated superior mesenteric artery that formed a vascular loop, which continued posterior and inferiorly towards the posterior pelvic region. In this region, it bifurcated and formed internal iliac branches, which were responsible for the arterial supply of the pelvis. In conclusion, MRA allows for precise evaluation of patients with infra-renal abdominal aorta agenesis. Although it is a rare entity, radiologists should be able to recognize it in ultrasound, CT and MRI studies.
F J de Albuquerque; A C Coutinho; E C Castro Netto; R C Domingues; E L Gasparetto
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  The British journal of radiology     Volume:  81     ISSN:  1748-880X     ISO Abbreviation:  Br J Radiol     Publication Date:  2008 Jul 
Date Detail:
Created Date:  2008-06-18     Completed Date:  2008-07-21     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0373125     Medline TA:  Br J Radiol     Country:  England    
Other Details:
Languages:  eng     Pagination:  e179-83     Citation Subset:  AIM; IM    
Clinics Multi-Imagem, University of Rio de Janeiro, Rio de Janeiro, Brazil.
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MeSH Terms
Aorta, Abdominal / abnormalities*,  ultrasonography
Incidental Findings
Magnetic Resonance Angiography / methods*
Tomography, X-Ray Computed

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