Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left subclavian dialysis catheter is in place with its tip in the low SVC and is unchanged . The heart is top normal in size . The mediastinal and hilar contours are within normal limits . The aorta is tortuous . There is persistent atelectasis at the right base , not significantly changed . There is minimal atelectasis at the left base . There is no evidence of pneumothorax . There may be a small pleural effusion on the right .
    OUTPUT:
    
1 . Right basal atelectasis and probable small right pleural effusion , not significantly changed . 2 . Minimal left basal atelectasis .