Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a rounded region of consolidation in the left upper lobe . Elsewhere , the lungs are clear . The cardiomediastinal silhouette is normal . No acute osseous abnormalities .
    OUTPUT:
    
Left upper lobe region of consolidation which would be compatible with pneumonia in the proper clinical setting . Recommend repeat after treatment to document resolution to exclude underlying mass lesion .