Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is consolidation at the left lung base , within the lower lobe . Elsewhere , the lungs are clear . There is mild to moderate cardiomegaly . Probable moderate hiatal hernia is noted . No acute osseous abnormalities identified . Chronic posttraumatic changes seen at the proximal left humerus and degenerative changes at the right shoulder .
    OUTPUT:
    
Left basilar consolidation compatible with pneumonia in the proper clinical setting . Repeat after treatment will be necessary to document resolution .