Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right upper lobe collapse is consistent with a post obstructive process and is accompanied by apparent right mediastinal lymphadenopathy . Known obstructing lesion is more fully evident on separately dictated MRI of the spine . Lungs are otherwise remarkable for upper and mid the zone reticular and nodular opacities with some associated architectural distortion suggesting chronic fibrosis . Heart size is normal , in the thoracic aorta is tortuous . Rounded opacity just above the level of the diaphragm probably reflects a hiatal hernia . Right hemidiaphragm is moderately elevated . No pleural effusion . Known expansile masses in the thoracic spine have been more fully assessed by separately dictated MRI of the spine from ___
    OUTPUT:
    
1 . Postobstructive collapse of right upper lobe secondary to centrally obstructing mass , more fully evaluated by separately dictated MRI of the spine from ___ . Dedicated contrast - enhanced chest CT would be helpful for more complete assessment when the patient 's condition allows . 2 . Known thoracic spine metastases have been better evaluated on the spine MRI .