Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single upright view of the chest provided . There is no focal consolidation , effusion , or pneumothorax . Streaky left lower lobe atelectasis is similar to prior . Moderate cardiomegaly is similar to prior . Imaged osseous structures are intact . No free air below the right hemidiaphragm is seen . Aortic arch calcification appears similar to prior .
    OUTPUT:
    
No acute intrathoracic process .