Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided demonstrate midline sternotomy wires and mediastinal clips again noted . The heart remains top - normal in size . Aorta is unfolded . The lungs are clear without focal consolidation effusion or pneumothorax . The bony structures are intact . No free air is seen below the right hemidiaphragm . A metallic coil is again noted in the upper mid abdomen .
    OUTPUT:
    
No acute intrathoracic process .