Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval removal of the right pleural drainage catheter . No pneumothorax or gross pleural effusion detected . There is linear atelectasis in the right middle and lower lobes . There is increased retrocardiac opacity which likely reflects atelectasis though superimposed infection would be difficult to exclude . Cardiomediastinal contours , including left ventricular configuration and calcified unfolded aorta , are unchanged . No CHF . Probable left upper zone calcified granulomas and calcified hilar or mediastinal lymph nodes , suggesting prior granulomatous infection . Subtle noncalcified nodes a be present , better seen on ___ . Mesh metallic density seen overlying the upper abdomen in the midline extending beyond the edge of this film is compatible with a stent of some kind . The appearance is similar to ___ .
    OUTPUT:
    
Interval removal of right - sided catheter . No pneumothorax or gross effusion identified . Bibasilar opacities likely reflecting atelectasis , though superimposed infection is difficult to completely exclude . Nodular densities in left upper lobe , some of which are calcified . These were better seen on the ___ chest CT . In the absence of supervening symptoms , consider follow - up CT in ___ months to assess for resolution / stability .