TX
|
Tumor proven by the presence
of malignant cells in bronchopulmonary
secretions but not visualized roentgenographically
or bronchoscopically, or any tumor that
cannot be assessed, as in a retreatment
staging. |
T0
|
No evidence of primary tumor. |
TIS
|
Carcinoma in situ. |
T1
|
A tumor that is 3.0 cm or less in greatest
dimension, surrounded by lung or visceral
pleura, and without evidence of invasion
proximal to a lobar bronchus at bronchoscopy.* |
T2
|
A tumor more than 3.0 cm in greatest
dimension, or a tumor of any size that
either invades the visceral pleura or
has associated atelectasis or obstructive
pneumonitis extending to the hilar region.
At bronchoscopy, the proximal extent
of demonstrable tumor must be within
a lobar bronchus or at least 2.0 cm distal
to the carina. Any associated atelectasis
or obstructive pneumonitis must involve
less than an entire lung. |
T3
|
A tumor of any size with direct extension
into the chest wall (including superior
sulcus tumors), diaphragm, or the mediastinal
pleura or pericardium without involving
the heart, great vessels, trachea, esophagus
or vertebral body, or a tumor in the
main bronchus within 2 cm of the carina
without involving the carina, or associated
atelectasis or obstructive pneumonitis
of entire lung. |
T4
|
A tumor of any size with invasion of
the mediastinum or involving heart, great
vessels, trachea, esophagus, vertebral
body or carina or presence of malignant
pleural or pericardial effusion,** or
with satellite tumor nodules within the
ipsilateral, primary tumor lobe of the
lung. |
