Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Midline sternotomy wires are again noted . The heart is mildly enlarged . There is a similar pattern of linear density abutting the left heart border which likely reflects the presence of a fat pad and minimal adjacent atelectasis . No signs of pneumonia or edema . No large effusion or pneumothorax . Bony structures are intact . Mediastinal contour is normal . No free air below the right hemidiaphragm .
    OUTPUT:
    
No acute intrathoracic process . Stable cardiomegaly .