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
Physical exam, imaging studies and endoscopy indicate tumor is confined to upper third of the esophagus.
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