Fig. 5From: Pulmonary fibrosis on the lateral chest radiograph: Kerley D lines revisited63-year-old asymptomatic man with a normal radiograph (a) showing fine linear opacities in the retrosternal clear space that taper before reaching the sternum. In contrast, coarse reticular opacities form a mesh and extend to the sternum (b) in a 67-year-old man with an unclassified pulmonary fibrosis (CT not shown)Back to article page