Diagnostic Utility of Cervical MRA including the Aortic Arch in Identifying an Aberrant Right Subclavian Artery Associated with an Anomalous Right Vertebral Artery Origin from the Right Common Carotid Artery

Key Points

• This case investigates the ability of cervical MRA to identify rare vascular anomalies associated with neurological symptoms.
• Conducted a cervical MRA including the aortic arch on a 58-year-old female with dizziness and left cerebellar infarct.
• Performed cerebral angiography to evaluate the suspected aberrant right subclavian artery and associated vertebral artery anomaly.
• Reviewed existing literature on the anatomical features and background of the identified vascular anomalies.
• Cervical MRA indicated the presence of an aberrant right subclavian artery.
• Cerebral angiography confirmed an anomalous origin of the right vertebral artery from the right common carotid artery.
• The occurrence of these vascular anomalies is exceptionally rare, with implications for diagnosis and treatment.