Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Moderate cardiomegaly is re - demonstrated . There is mild pulmonary edema , perhaps minimally worse compared to the previous exam . Small bilateral pleural effusions may be present , and bibasilar opacities likely reflect areas of atelectasis . No large pneumothorax is present though assessment of the left apex is slightly obscured due to the patient 's neck and soft tissues projecting over this region . Degenerative changes of the left glenohumeral joint are noted .
    OUTPUT:
    
Low lung volumes . Mild pulmonary edema and probable small bilateral pleural effusions with bibasilar atelectasis .