Aberrant Course of Carotid Arteries Presenting As Retropharyngeal Mass.
Journal Title: International Journal of Medical Science and Innovative Research (IJMSIR) - Year 2019, Vol 4, Issue 1
Abstract
Anatomical variations of carotid arteriesare well known and reported in the medical literature. Normally carotid arteries from its origin from arch of aorta up to the skull base does not give any branches and follow a straight course (1). Approximately 10-40% shows anatomical variations in the cervicalcourse of internal carotid arteries (ICA) in the form of abnormalities in curvatures, notching elbowing(2). Medial transposition of ICA i.e. retropharyngeal course is one of the unusual anatomical variations. It sometimes presents as dysphagia, foreign body sensation in the throat or sometimes detectedincidentally during neck imaging for throat complaints. Prior knowledge of the anatomy in this region is mandatory to avoid life threatening complications resulting from injury to the vascular structures during diagnostic procedures like biopsy or any surgical intervention done in this region and also before undergoing anaesthesia. In old patients, atherosclerotic changes are seen in these CAs and associated with risk of cerebrovascular accidents(2). In elderly persons, these variations mimic neoplasm so imaging is required before undergoing any diagnostic or therapeutic procedures. In paediatric patients, information of these anatomic variations is must before adenotonsillectomy toavoid disastrous consequences (3, 4). Imaging studies e.g. CT or MRI can very well demonstrate these anatomical variations and should be undertaken before any diagnostic or therapeutic procedure in these regions to avoid catastrophic events.
Authors and Affiliations
Dr. Chetana Ratnaparkhi
Keywords
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