Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no pneumothorax after chest tube placement ; right moderate pleural effusion has significantly improved and is now minimal . There is bronchovascular crowding at the left lung base . Moderate cardiomegaly is unchanged .
    OUTPUT:
    
1 . There is no pneumothorax after right chest tube placement . 2 . Right pleural effusion has significantly improved .