Find Information About:

Drugs & Supplements

Get information and reviews on prescription drugs, over-the-counter medications, vitamins, and supplements. Search by name or medical condition.

Pill Identifier

Pill Identifier

Having trouble identifying your pills?

Enter the shape, color, or imprint of your prescription or OTC drug. Our pill identification tool will display pictures that you can compare to your pill.

Get Started

My Medicine

Save your medicine, check interactions, sign up for FDA alerts, create family profiles and more.

Get Started

WebMD Health Experts and Community

Talk to health experts and other people like you in WebMD's Communities. It's a safe forum where you can create or participate in support groups and discussions about health topics that interest you.

  • Second Opinion

    Second Opinion

    Read expert perspectives on popular health topics.

  • Community


    Connect with people like you, and get expert guidance on living a healthy life.

Got a health question? Get answers provided by leading organizations, doctors, and experts.

Get Answers

Sign up to receive WebMD's award-winning content delivered to your inbox.

Sign Up

Lung Cancer Health Center

Font Size

Non-Small Cell Lung Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI] - Stage Information for NSCLC

Table 7. Definitions of TNM Stage IIBa

a Reprinted with permission from AJCC: Lung. In: Edge SB, Byrd DR, Compton CC, et al., eds.: AJCC Cancer Staging Manual. 7th ed. New York, NY: Springer, 2010, pp 253-70.
b The uncommon superficial spreading of the tumor of any size with its invasive component limited to the bronchial wall, which may extend proximally to the main bronchus, is also classified as T1a.
T2b, N1, M0
T2b = Tumor >5 cm but ≤7 cm in greatest dimension,or tumor with any of the following features: involves main bronchus, ≥2 cm distal to the carina; invades visceral pleura (PL1 or PL2);or is associated with atelectasis or obstructive pneumonitis that extends to the hilar region but does not involve the entire lung.

N1 = Metastasis in ipsilateral peribronchial and/or ipsilateral hilar lymph nodes and intrapulmonary nodes, including involvement by direct extension.
M0 = No distant metastasis.
T3, N0, M0T3 = Tumor >7 cmor one that directly invades any of the following: parietal pleural (PL3) chest wall (including superior sulcus tumors), diaphragm, phrenic nerve, mediastinal pleura, or parietal pericardiumor tumor in the main bronchus (<2 cm distal to the carinab but without involvement of the carina)or associated atelectasis or obstructive pneumonitis of the entire lung or separate tumor nodule(s) in the same lobe.b
N0 = No regional lymph node metastasis.
M0 = No distant metastasis.
Next Article:

Today on WebMD

Broken cigarette
Do you know the myths from the facts?
man with a doctor
Our health check will steer you in the right direction.
sauteed cherry tomatoes
Fight cancer one plate at a time.
Lung cancer xray
See it in pictures, plus read the facts.
15 Cancer Symptoms Men Ignore
Lung Cancer Risks Myths and Facts
cancer fighting foods
Improving Lung Cancer Survival Targeted Therapy
Lung Cancer Surprising Differences Between Sexes
Pets Improve Your Health
Vitamin D
Lung Cancer Surgery Options