Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were obtained . Lung volumes are low on the frontal radiograph . Allowing for this , there is no definite sign of pneumonia or CHF . No pleural effusion or pneumothorax is seen . Cardiomediastinal silhouette appears normal . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
No acute intrathoracic process .