Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right - sided hemodialysis catheter terminates within the right atrium , unchanged from prior . There has been interval removal of a right internal jugular central line . Linear opacities are identified in the lung bases which likely reflect a combination of scarring and resolving pulmonary edema given the prior history and radiographic findings . There has been significant improvement in the previously described pulmonary edema and effusions . No pneumothorax is evident . Mediastinal and hilar contours are within normal limits . There is moderate cardiomegaly which is stable . No subdiaphragmatic free air is evident .
    OUTPUT:
    
1 . Interval decrease of pulmonary edema and effusions . 2 . Linear opacities in the lung bases likely reflect scarring and resolving edema . 3 . No subdiaphragmatic free air .