Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is new airspace opacity involving the right upper lobe when compared to ___ . This is superimposed on the bilateral basal and peripheral interstitial lung disease . In review of multiple prior radiographs , the patient appears to rapidly go in and out of congestive heart failure . Moderate cardiomegaly persists . No pneumothorax . Sternal wires remain intact and aligned
    OUTPUT:
    
Worsening asymmetric right - sided pulmonary edema superimposed on background interstitial lung disease .