Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Sternotomy . Cardiac pacemaker . Moderate right pleural effusion is similar . Worsened right basilar opacity , likely atelectasis . Interstitial and nodular left pulmonary opacity is stable , consider infection , with possible component of edema . . Follow - up exam is recommended to document resolution . New retrocardiac mild atelectasis or infiltrate .
    OUTPUT:
    
New retrocardiac mild atelectasis or infiltrate . Mildly worsened right basilar opacity , likely atelectasis . Otherwise stable .