Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison with the prior exam , continued asymmetric resorption of the pulmonary edema has occurred . While opacities still exist , given the rate of resorption , it would be premature to call this pneumonia , although this is a possibility . No pleural effusion is present . Cardiac size is still enlarged . Pacemaker leads terminating in unchanged correct position .
    OUTPUT:
    
Improvement in the previously mild pulmonary edema .