Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low , decreased compared to the prior chest radiograph from ___ . There are bilateral mid to lower lung interstitial opacities , slightly increased compared to the most recent study from ___ , but substantially improved compared to the study from ___ , likely mild interstitial pulmonary edema . Mild cardiomegaly is not significantly changed . Bulging of the ascending aortic contour has been seen on prior radiographs , including the study from ___ . There are no definite pleural effusions . No pneumothorax is seen .
    OUTPUT:
    
1 . Slightly increased mild interstitial pulmonary edema compared to the prior radiograph from ___ . 2 . Mild cardiomegaly , not significantly changed .