title: Persistent fifth aortic arch. A report of two new cases and a review of the literature.
abstract: Two new cases of persistent fifth aortic arch are described, one with a distal connexion to the pulmonary circulation and the other to the systemic circulation. The previously reported cases are reviewed and the advantages conferred clinically by persistence of this structure are noted.
mesh_terms: D000015:Abnormalities, Multiple / Q000473:pathology; D001013:Aorta, Thoracic / Q000002:abnormalities* / Q000473:pathology; D005260:Female; D006801:Humans; D007231:Infant, Newborn