Intralobar Pulmonary Sequestration With Two Aberrant Arteries Presumably Originating From an Aberrant Pulmonary Artery and an Aberrant Bronchial Artery of One Accessory Lung Bud: A Case Report and Review of the Literature

Abstract

We experienced treating a case of intralobar pulmonary sequestration with two aberrant arteries, both of which branched from the descending thoracic aorta into the sequestered lobe. Histopathologically, each artery ran through its territory and each drained into the inferior pulmonary vein and hemiazygos vein. We assumed that the two arteries have different embryological origins. We reviewed Japanese case reports of pulmonary sequestration with multiple aberrant arteries and venous drainages, and we then discussed the pathogenesis of this case in terms of embryological theories about accessory lung buds and the development of pulmonary arteries and bronchial arteries in this article. The two aberrant arteries presumably originate from a pulmonary artery and a bronchial artery of an accessory lung bud.