Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were obtained demonstrating clear , well - expanded lungs without focal consolidation , effusion , pneumothorax . The previously noted opacity in the right upper lobe has completely resolved . The heart size is normal . Mediastinal contour is unremarkable . The imaged osseous structures are intact . There is no free air below the right hemidiaphragm .
    OUTPUT:
    
No acute intrathoracic process .