Figure 2

Lateral (a) and dorsoventral (b) thoracic radiographs of the same dog 10 days later. There is an increase in soft tissue opacity in the region of the right middle and dorso-caudal lung fields at the level of the fifth to ninth intercostal spaces (white arrows). The trachea is evident and displaced dorsally and kinked to the right at the level of the third intercostal space. There is also an axial rotation of the tracheal bifurcation. The right cranial lobar bronchus (black arrow in b) is displaced caudally to the level of the fifth intercostal space and is abruptly occluded.