Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . When compared to prior been no significant interval change . Again seen is consolidation in the left lower lobe silhouetting the hemidiaphragm . There is a similar degree of volume loss , with leftward shift of the mediastinum . The right lung remains clear . Atherosclerotic calcification is seen at the aortic arch . Cardiomediastinal silhouette is difficult to assess given silhouetting on the left . No acute osseous abnormality is identified .
    OUTPUT:
    
Consolidation in the left lower lobe with at least some component of volume loss again suggestive of probable infection and component of atelectasis . Repeat after treatment to document resolution and return to normal volume . As previously suggested , CT scan is suggested to exclude an obstructing lesion if persistent atelectasis .