Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is borderline enlarged . Mediastinal and hilar contours are normal . Pulmonary vasculature is normal . Subsegmental atelectasis is demonstrated within the right mid lung field . No focal consolidation , pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
No radiographic evidence for pneumonia .