Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest are obtained . Lungs are essentially clear bilaterally without definite signs of pneumonia or CHF . No pleural effusion or pneumothorax is seen . Cardiomediastinal silhouette appears grossly unremarkable . Degenerative changes are noted in the T - spine with small endplate spurs noted . No free air below the right hemidiaphragm is seen .
    OUTPUT:
    
No acute intrathoracic process .