Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Blunting of the left costophrenic angle is chronic , and is consistent with a combination of pleural effusion and collapse of the left lower lobe . Right basal opacity likely reflects atelectasis . No evidence of pulmonary edema or pneumothorax .
    OUTPUT:
    
1 . Chronic blunting of the left costophrenic angle appears stable , and is most consistent with a combination of pleural effusion collapse . 2 . Right lower lobe atelectasis . 3 . No pneumonia or evidence of pulmonary edema .