Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no evidence of focal consolidation , pleural effusion , pneumothorax , or frank pulmonary edema . Recurrent patchy opacification is seen within the right lower lobe , compatible with waxing and waning atelectasis . Stable moderate cardiomegaly is again noted . The mediastinal contours are normal . There has been interval removal of a right - sided subclavian central venous catheter . A nasogastric tube is seen coursing into the stomach and out of view of the radiograph .
    OUTPUT:
    
Recurrent right lower lobe patchy airspace opacity , suggestive of waxing and waning atelectasis . However , infection is not excluded and , if clinically indicated , short - term follow - up radiographs may be helpful to reassess .