Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Aeration of both lungs has significantly improved in the preceding 17 hours due to resolution of moderately severe pulmonary edema . Moderate right and smaller left pleural effusions are present . No pneumothorax is present . Mild cardiomegaly is unchanged . A left subclavian catheter tip terminates in the upper SVC .
    OUTPUT:
    
Significant improvement in previously severe pulmonary edema . Moderate right and small left pleural effusions .