Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were obtained . Lungs are clear . No signs of pneumonia or CHF . Cardiomediastinal silhouette is stable . Dextroscoliosis of the T - spine , unchanged . Right shoulder arthroplasty again noted .
    OUTPUT:
    
No acute intrathoracic process .