Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided . The lungs are clear bilaterally without focal consolidation , effusion , or pneumothorax . No signs of pulmonary edema or congestive heart failure . The cardiomediastinal silhouette is normal . There is calcification again noted along the aortic knob . The imaged bony structures appear intact . There is no free air below the right hemidiaphragm .
    OUTPUT:
    
No acute intrathoracic process .