Based on the case description, choose the one best answer by selecting one of the following radio buttons.
0 — In situ
1 — Localized only
2 — Regional by direct extension only
3 — Regional lymph nodes involved only
4 — Regional by BOTH direct extension AND lymph node involvement
5 — Regional, NOS (Not Otherwise Specified)
7 — Distant site(s)/node(s) involved
9 — Unknown if extension or metastasis (unstaged, unknown, or unspecified) Death certificate only case
Regional LNs (2 peribronchial LNs).
Note 5: Ignore pulmonary vein within the lung itself.
US Department of Health & Human Services | National Institutes of Health | National Cancer Institute | USA.gov
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