Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest are obtained . No focal consolidation , pleural effusion , or evidence of pneumothorax is seen . There is minimal left base atelectasis . The cardiac silhouette is top normal . There may be slight prominence of the main pulmonary artery without other findings to suggest pulmonary hypertension . There are minimal degenerative changes along the spine .
    OUTPUT:
    
No radiographic evidence of pneumonia .