796-797 / 1578
SABR and occult nodal metastases
•
284 patients with PET-CT-staged clinical T1-2N0 disease
•
Occult N2 metastases detected on either mediastinoscopy or endobronchial
ultrasound (EBUS) in 7.0%
•
18% occult N2 metastases in tumors located within
inner 1/3 of lung fields
•
Occult N1 disease seen in 3% of patients with T1 disease, and
14% with T2
disease
(P < 0.001)
Gao SJ, Lung Cancer 2017