Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate a normal cardiomediastinal silhouette . There has been interval removal of bilateral PICCs . There is improved aeration of the left lung base , with decrease in previously seen consolidation . No definite new focal consolidation is identified . Slightly increased opacity in the left mid lung appears streaky and is likely related to atelectasis . There is a small left pleural effusion . No pneumothorax is identified . The visualized upper abdomen demonstrates an incompletely imaged catheter overlying the left upper quadrant .
    OUTPUT:
    
1 . Improved aeration of the left lung base , with decrease in previously - seen consolidation . No definite new focal consolidation identified , with slightly increased opacity in the left mid lung likely related to atelectasis . 2 . Small left pleural effusion .