1. Volume 131, Issue 4, Pages 993-999 (April 2007)
Significance of Extranodal Extension of Regional Lymph Nodes in Surgically Resected Non-small Cell Lung Cancer 
Yung-Chie Lee, MD, PhD, Chen-Tu Wu, MD, Shuenn-Wen Kuo, MD, Yu-Ting Tseng, MD, Yih-Leong Chang, MD 
CHEST 
Volume 131, Issue 4, Pages (April 2007)
DOI: /chest
Copyright © 2007 The American College of Chest Physicians Terms and Conditions

2. Figure 1
Metastatic NSCLC in an LN with extranodal extension (hematoxylin-eosin, original ×33).
CHEST  , DOI: ( /chest )
Copyright © 2007 The American College of Chest Physicians Terms and Conditions

3. Figure 2
Comparison of survival curves between the presence and absence of extranodal extension (p < 0.001).
CHEST  , DOI: ( /chest )
Copyright © 2007 The American College of Chest Physicians Terms and Conditions

4. Figure 3
Survival curves in three groups with different total numbers of positive extranodal LN (ie, 0, 1 to 3, and >3) [p < 0.001].
CHEST  , DOI: ( /chest )
Copyright © 2007 The American College of Chest Physicians Terms and Conditions

5. Figure 4
Survival curves in three groups with different positive rates of extranodal extension (ie, 0%, ≤ 50%, and >50%) [p < 0.001].
CHEST  , DOI: ( /chest )
Copyright © 2007 The American College of Chest Physicians Terms and Conditions

6. Figure 5
Survival curves in different tumor stages with consideration of extranodal extension. Significant difference between stage IIIA extranodal (−) and stage II extranodal (+) was noted (p < 0.001).
CHEST  , DOI: ( /chest )
Copyright © 2007 The American College of Chest Physicians Terms and Conditions

7. Figure 6
Survival curves in three groups with either or both intrapulmonary and mediastinal extranodal extension (p = 0.069).
CHEST  , DOI: ( /chest )
Copyright © 2007 The American College of Chest Physicians Terms and Conditions