Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views the chest provided . Lungs are clear without focal consolidation , large effusion or pneumothorax . Cardiomediastinal silhouette is normal . There a small amount of pneumomediastinum seen below the right hemidiaphragm likely reflecting recent surgery . Bony structures are intact .
    OUTPUT:
    
No pneumonia . Small amount of intraperitoneal free air likely reflects recent cholecystectomy .