For the study, researchers reviewed the medical records of patients diagnosed with inoperable primary and metastatic hilar lung tumors. Hilar tumors abut or invade the mainstem bronchus.

The Lung Cancer Study Group investigated the value ... to lymph nodes in the peribronchial region, ipsilateral hilar region, or both, including direct extension] vs. N2 [metastasis to ipsilateral ...

if there is a mass or other condition affecting the hilar tissue, it may need to be surgically removed, or resected. Resection can be a successful treatment for treating small-cell lung cancers ...

and in the region of left hilar lymphadenopathy (arrow). There is also intense FDG uptake in the eighth thoracic vertebra that is suggestive of bony metastatic disease (black arrowhead).