Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright radiograph of the chest demonstrates persistent moderate - sized left pleural effusion with adjacent atelectasis and small right - sided pleural effusion with adjacent atelectasis , which are overall unchanged from the prior study . There has been interval decrease in the degree of pulmonary edema seen . Moderate cardiomegaly is unchanged . Persisting calcification of the aortic knob . No pneumothorax or focal consolidation . A left sided PICC line ends in the axilla .
    OUTPUT:
    
Interval improvement in pulmonary edema .