Three-dimensional high-resolution computed tomography reconstruction of a) both lungs in a normal dog (Sham), b) the left lung in a dog after undergoing right pneumonectomy (PNX), and c) the right lung in a dog after left PNX, each shown in dorsal (left-han... Three-dimensional high-resolution computed tomography reconstruction of a) both lungs in a normal dog (Sham), b) the left lung in a dog after undergoing right pneumonectomy (PNX), and c) the right lung in a dog after left PNX, each shown in dorsal (left-hand side) and caudal (right-hand side) views oriented by their coordinate axes. Each lobe is designated by a specific colour, as follows. Right upper: grey; right middle: yellow; right caudal: magenta; right infra-cardiac or accessory: light blue; left upper: green; left middle: red; left lower: dark blue. C. C. W. Hsia Eur Respir Rev 2006;15:148-156 ©2006 by European Respiratory Society