Invagination of the left subclavian artery into the left upper lobe--a normal variant.
A rare variant of the left subclavian artery is presented, in which the usually intramediastinal portion of the artery ascended in the medial aspect of the left upper lobe in a 44-year-old woman. A septum, presumed to represent a quadruple layer of visceral and parietal pleurae, connected the mediastinum to the intrapulmonary course of the artery.
Austin
J H
JH
D000328:Adult; D005260:Female; D006801:Humans; D008168:Lung / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D013348:Subclavian Artery / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed