Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right - sided chest tube has been removed in the interim . The moderate size right pleural effusion is unchanged . There is a small anterior pneumothorax , only appreciated on the lateral view . Increase in the airspace opacity involving the right lung and , to a lesser extent , the left lung base is noted . There is persistent subcutaneous air along the right chest wall . A right ___ rib deformity is unchanged .
    OUTPUT:
    
1 . Small anterior pneumothorax after chest tube removal . 2 . Increased airspace opacification at the right lung base . Differential includes asymmetric edema versus developing pneumonia . 3 . Unchanged moderate right pleural effusion .