Lung cancer stage grouping (eighth edition)

T/M	Label	N0	N1	N2	N3
T1	T1a ≤1	IA1	IIB	IIIA	IIIB
	T1b >1 to 2	IA2	IIB	IIIA	IIIB
	T1c >2 to 3	IA3	IIB	IIIA	IIIB
T2	T2a Cent, Visc Pl	IB	IIB	IIIA	IIIB
	T2a >3 to 4	IB	IIB	IIIA	IIIB
	T2b >4 to 5	IIA	IIB	IIIA	IIIB
T3	T3 >5 to 7	IIB	IIIA	IIIB	IIIC
	T3 Inv	IIB	IIIA	IIIB	IIIC
	T3 Satell	IIB	IIIA	IIIB	IIIC
T4	T4 >7	IIIA	IIIA	IIIB	IIIC
	T4 Inv	IIIA	IIIA	IIIB	IIIC
	T4 Ipsi Nod	IIIA	IIIA	IIIB	IIIC
M1	M1a Contr Nod	IVA	IVA	IVA	IVA
	M1a Pl Dissem	IVA	IVA	IVA	IVA
	M1b Single	IVA	IVA	IVA	IVA
	M1c Multi	IVB	IVB	IVB	IVB

Centr, Visc Pl: tumor involving main bronchus (not carina), atelectasis to hilum or visceral pleura; T3 Inv: tumor invading chest wall, pericardium, phrenic nerve; T3 Satell: separate tumor nodule(s) in the same lobe; T4 Inv: tumor invading mediastinum, diaphragm, heart, great vessels, recurrent laryngeal nerve, carina, trachea, esophagus, spine; T4 Ipsi Nod: tumor nodule in different ipsilateral lobe; M1a Contr Nod: separate tumor nodule(s) in contralateral lobe; M1a Pl Dissem: malignant pleural/pericardial effusion or pleural/pericardial nodules; M1b Single: single extrathoracic metastasis; M1c Multi: multiple extrathoracic metastases (1 or >1 organ).

Original figure modified for this publication. Detterbeck FC, Boffa DJ, Kim AW, et al. The eighth edition lung cancer stage classification. Chest 2017; 151:193. Table used with the permission of Elsevier Inc. All rights reserved.

Graphic 110964 Version 2.0

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Lung cancer stage grouping (eighth edition)