Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral chest radiographs were obtained . Known interstitial lung disease contributes to a bilateral perihilar interstitial abnormality . In addition to the chronic findings there is bilateral ground - glass opacity and interstitial thickening , predominantly radiating from the hila . Cardiomegaly remains moderate . Aortic arch calcifications are unchanged . A right - sided PICC line terminates in the low SVC . A left chest Port - A - Cath terminates in the right atrium . Vertebroplasty changes are stable .
    OUTPUT:
    
New pulmonary parenchymal abnormalities on top of chronic pulmonary fibrosis most likely represents pulmonary edema . Infection is less likely .