Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . There is new patchy consolidation identified in the left upper and left lower lobes . Linear opacity in the right mid lung is likely due to scarring . The right lung is otherwise clear . Cardiomediastinal silhouette is unchanged and notable for mild cardiomegaly . Atherosclerotic calcifications seen at the aortic arch . No acute osseous abnormalities detected .
    OUTPUT:
    
Left - sided pneumonia .