3-dimensional surface reconstructions of acinar, sub-lobar and lobar compartments. Left: Lung from right lateral oblique with lobes in primary colors (cranial = red, medial = blue, caudal = purple and left = green). The sublobes are outlined by the dark lines (“cracks”) on the lung surface. Right: Lung from front with lobes in primary colors (cranial = red, medial = blue, caudal = purple, accessory = cyan and left = green). The near-acinar compartments are outlined by the cracks on the lung surface.