Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Bronchovascular crowding and atelectasis noted at the lung bases without definite signs of pneumonia , effusion or edema . No pneumothorax is seen . Cardiomediastinal silhouette appears grossly unremarkable . Bony structures appear intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
No acute intrathoracic process .