Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without confluent opacity . No pulmonary edema or pleural effusion is identified . Mild blunting of the right costophrenic angle is likely related to pleural thickening . There is no pneumothorax . Cardiomediastinal and hilar contours are within normal limits .
    OUTPUT:
    
No acute cardiopulmonary process