Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is difficult to determine given the presence of a moderate size right pleural effusion , which appears relatively unchanged compared to the prior exam . There is mild pulmonary edema , slightly improved compared to the previous exam . Streaky left basilar opacity may reflect atelectasis , with a right basilar opacity also likely reflective of compressive atelectasis . A small left pleural effusion appears to be present . There is no pneumothorax . Assessment of the lung apices is somewhat obscured due to the patient 's chin projecting over this region . No acute osseous abnormalities are present .
    OUTPUT:
    
1 . Moderate size right pleural effusion , similar compared to the prior exam , with trace left pleural effusion . 2 . Bibasilar airspace opacities could reflect compressive atelectasis but infection is not excluded . 3 . Interval improvement in mild pulmonary edema .