Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Previously described left basal lucency has resolved . No pneumothorax . Small bilateral pleural effusions are unchanged . The lungs are hyperinflated . Right basal atelectasis also has not significantly changed . Left lower lobe atelectasis has slightly improved . Mild cardiomegaly . The left - sided PICC is in the upper to mid SVC and tracheostomy is in good position .
    OUTPUT:
    
No pneumothorax on today 's examination . Small bilateral pleural effusion unchanged . Left basal atelectasis improved .