Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal contours are stable allowing for differences in lung volumes . There has been marked interval improved aeration in the left lower lobe with residual retrocardiac opacity remaining as well as mild elevation of the left hemidiaphragm . Bandlike , linear atelectasis is also present in the lingula . Small left pleural effusion has slightly decreased in size . The right lung and pleural surfaces are clear . Distended loops of bowel with air - fluid levels in the imaged upper abdomen are incompletely imaged on this study .
    OUTPUT:
    
Improving left lower lobe atelectasis and decreasing small left pleural effusion . INCOMPLETELY EVALUATED DISTENDED LOOPS OF BOWEL IN THE IMAGED UPPER ABDOMEN . CONSIDER DEDICATED ABDOMINAL RADIOGRAPH SERIES FOR MORE COMPLETE EVALUATION IF WARRANTED CLINICALLY .