Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is moderately enlarged . Again noted are midline sternal wires , only the lower ones of which are in place , and surgical clips . There are patchy , bilateral opacities , particularly in the right mid lung , which , on the most recent examination was obscured by the patient 's overlying hand . Similar opacities were also seen on more remote studies including ___ and ___ . No pleural effusion or pneumothorax is identified . Tracheostomy tube appears to be in standard position .
    OUTPUT:
    
Overall stable examination of the chest .