Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate cardiomegaly is stable since ___ . Mediastinal widening is likely due to lipomatosis . There is no pulmonary edema . There has been interval improvement of the pre-existing opacities at the right lung base . The small right pleural effusion is stable . Mild left lung base atelectasis and a small left pleural effusion persist . There is no pneumothorax . There has been interval removal of a right - sided IJ .
    OUTPUT:
    
Interval improvement of the pre-existing right lung base pneumonia .