The presence of an aberrant right subclavian artery originating as the last branch of the aortic arch is a rare variation. A single case of this aberrant vessel, together with a bicarotid trunk, was observed in an 80-year-old female during dissection. A small, atherosclerotic saccular aneurysm was present at the origin of the aberrant vessel. The aberrant right subclavian artery coursed posterior to the esophagus and trachea to reach the right upper limb. Surgeons operating on structures in the mediastinum, including the esophagus, should be aware of the existence of this variant vessel to avoid accidental injury.
© 2001-2024 Fundación Dialnet · Todos los derechos reservados