Fig. 3
From: A case of tuberculosis of the rare azygos lobe of the right lung
a, b HRCT thorax of normal azygos lobe and fissure. a Axial HRCT thorax image demonstrates the azygos fissure as a C-shaped thin curvilinear density (yellow arrow) and the azygos lobe (black arrow) medial to it (courtesy of Dr. Ramesh Giti, MD, Mashhad University of Medical Sciences, Mashhad, Iran). b Axial HRCT thorax shows the azygos vein as a thicker band (yellow arrow) within the right upper lobe