Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Flattening of the diaphragms is consistent with known history of emphysema . Increased vascular marking with upper redistribution and interstitial thickening is present . Ill defined opacities are noted in both lung bases . Small bilateral pleural effusions are also noted , left worse than right , with concurrent bibasilar atelectases . There is no evidence of pneumothorax . Mild cardiomegaly and severe degenerative changes of the right AC joint are again seen .
    OUTPUT:
    
Emphysematous lungs with superimposed pulmonary edema . Superimposed bibasilar pneumonia can not be excluded .