Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . There is no focal consolidation , effusion , or pneumothorax . Cardiomegaly is similar to prior . Imaged osseous structures are intact . No free air below the right hemidiaphragm is seen . Postoperative changes are similar to prior .
    OUTPUT:
    
No acute intrathoracic process .