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A rare cause of dysphagia--aberrant right subclavian artery (ARSA).

Authors
  • Tzilas, V
  • Koti, A
  • Tsoukalas, G
Type
Published Article
Journal
European review for medical and pharmacological sciences
Publication Date
Jan 01, 2009
Volume
13
Issue
4
Pages
313–316
Identifiers
PMID: 19694347
Source
Medline
License
Unknown

Abstract

Aberrant Right Subclavian Artery (ARSA) is a rare vascular anomaly. It is though the most frequent anomaly involving the aortic arch, being present in about 1% of the general population. We present a case of a 71 year old male with symptoms of chronic cough and dysphagia. He was referred to our clinic for further evaluation of a mediastinal mass. A second Computed Tomography of the thorax was performed, this time with the use of i.v. contrast. The latter examination confirmed the diagnosis (ARSA), sparing the patient of invasive and potentially life threatening diagnostic procedures (invasive angiography, mediastinoscopy). This case highlights the significant pitfalls regarding the mediastinal evaluation, especially when i.v. contrast is not used. The majority of the mediastinal structures are vessels. Vessels abnormalities should be included in the differential diagnosis of a mediastinal mass.

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