Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Bilateral pulmonary interstitial edema is mild - moderate , associated with engorgement of the vascular pedicle . Increased opacity in the left lower lobe may represent atelectasis , potentially pneumonia . Small coinciding pleural effusion and / or atelectasis can not be excluded . Heart size is enlarged .
    OUTPUT:
    
1 . Cardiomegaly with new mild - moderate pulmonary edema . 2 . Possible new left lower lobe pneumonia versus atelectasis ; coinciding small pleural effusion is not excluded .