Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest were provided . Within the upper abdomen partially imaged is an IVC filter . The lungs appear clear without focal consolidation effusion or pneumothorax . The heart and mediastinal contours appear normal . The imaged osseous structures appear intact . There is no free air below the right hemidiaphragm .
    OUTPUT:
    
No acute intrathoracic process .