Hilar Abnormality in the Left Lung: Left Pulmonary Artery Posterior to the Left Mainstem Bronchus

Abstract

Sofia V Krylova, Sara Glickman, Ali Kalam, Katherine Chemakin, Joseph Yi, Linda Forrester, Priti Mishall, Adi Pinkas Department of Pathology, Albert Einstein College of Medicine, Bronx, NY, 10461, USACorrespondence: Adi Pinkas, Department of Pathology, Albert Einstein College of Medicine, 1300 Morris Park Avenue, F620S, Bronx, NY, 10461, USA, Email [email protected]: The thoracic cavity contains vital cardiovascular and pulmonary structures. Few congenital anatomical variations in the bronchial tree and pulmonary vasculature have been reported. Understanding such variants is crucial during surgical procedures that involve the thorax. During routine dissection of an 89-year-old male cadaver as part of a first-year anatomy course, an anomaly of the bronchial tree was discovered. The left lung hilum was notable for the pulmonary artery being posterior to the mainstem bronchus. The case report describes normal lung development and anatomy and the significance of this novel variation in which has not been previously described in the literature.Keywords: pulmonary artery, bronchus, lung, pulmonary vein, thoracic region

Keywords

• pulmonary artery
• bronchus
• lung
• pulmonary vein
• thoracic region