Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes remain low . Left lower lobe atelectasis is grossly unchanged . There is no focal consolidation . The cardiomediastinal contours are stable with a widened mediastinum and tortuous aorta . Multiple surgical clips a are noted in the left axilla as well as the right upper quadrant . A PTBD drain projects over the upper abdomen .
    OUTPUT:
    
Left lower lobe atelectasis . No focal consolidation .