Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since prior , there has been interval placement of a right - sided pleural pigtail catheter . There is some persistent component of pneumothorax seen inferolaterally . The patient is now positioned more optimally without significant rotation , and the mediastinum is in expected location . There is some right basilar opacity seen medially , potentially atelectasis ; however , continued followup is suggested especially given history of patient 's lung cancer . Surgical chain sutures again seen in the left paramediastinal region . No acute osseous abnormality is identified .
    OUTPUT:
    
Interval placement of right pleural pigtail catheter with decrease in size of right pneumothorax which persists . Right basilar opacity as above .