There is an ill-defined density in the right lower zone with loss of the right diaphragm silhouette , but a visible right heart margin. The density contains the branching lucency of air-containing bronchi, but no basal vessel margins can be seen. Their silhouette is lost. The lateral view shows the location of the oblique fissure that bounds the upper margin of the density. Its margin is slightly concave towards the opacified lung.
Abnormal lung tends to lose volume, unless it is about to cavitate.
Lobar pneumonia, consolidation in the right lower lobe.