Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Following removal of right pigtail pleural catheter , a moderate - sized right pleural effusion has slightly increased in size . There is no visible pneumothorax . Large mass occupies a majority of the right upper and mid hemithorax , and is associated with known right upper and right middle lobe collapse as well as hilar and mediastinal lymphadenopathy , better depicted on recent CT . Interstitial opacities are present in the right lower lobe . Left lung is well expanded with a persistent left upper lobe pulmonary nodule as well as smaller nodular opacities seen to better detail on the CT .
    OUTPUT:
    
1 . Slight increase in size of right pleural effusion following pigtail pleural catheter removal , with no visible pneumothorax . 2 . Large neoplastic mass in right hemithorax with associated right upper and right middle lobe collapse , ipsilateral lymphangitic spread of tumor , lymphadenopathy and contralateral lung nodules .