Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is top normal . Mediastinal silhouette and hilar contours are normal . Bronchovascular crowding at the right lung base is unchanged . Lungs are otherwise clear . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
No acute cardiopulmonary process ; specifically , no evidence of pneumonia .