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<p> <strong>Michael Lorentziadis, Themistocles Chamogeorgakis, Ioannis K Toumpoulis, Panagiotis Karayannacos, and Theodosios Dosios</strong> </p> <div> <em>University of Athens, School of Medicine, Laboratory of Experimental Surgery and Surgical Research, Athens, Greece</em> </div> <div> </div> <div> </div> <div style="text-transform:none;"> <strong>Abstract:</strong> The anatomy of porcine bronchial circulation has not been fully described. The purpose of this study was to investigate the extrapulmonary topographic anatomy of bronchial arteries in pig. Ten pigs weighing 15–25 kg were studied. Between one and four bronchial arteries were found in each pig. The bronchoesophageal artery (BEA), tracheobronchial artery (TBA), inferior bronchial artery (IBA) and accessory bronchial artery (ABA) were present in 10/10, 8/10, 6/10 and 2/10 animals, respectively. The trunk of BEA had a diameter of about 3 mm, a length of 1–7 mm, and originated from the anterior and medial aspect of the descending thoracic aorta at the level between the 2nd and 4th thoracic vertebrae (T<sub>2</sub>–T<sub>4</sub>) in all animals. The extrapulmonary topographic anatomy of bronchial arteries in pigs exhibits similarities to that of humans. BEA is the main blood supplier of the porcine tracheobronchial tree with a relatively constant location of origin and a sufficient size for anastomosis. These characteristics render BEA the ideal vessel for bronchial revascularization in pigs. </div> <div style="text-transform:none;"> </div> <div style="text-transform:none;"> <em>Full text available in <span>J Anat. </span><span>2005 October; </span><span>207</span><span>(4)</span><span>: 427–432. </span></em> </div>
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