Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lateral view was not repeated due to the patient 's nausea and inability to stay sitting . Low lung volumes result in bronchovascular crowding . There is no focal consolidation , pleural effusion or pneumothorax . Heart size is normal . Mediastinal silhouette and hilar contours are stable . Pleural thickening on the right may be due to old rib fractures .
    OUTPUT:
    
No pneumonia , edema or pleural effusion .