NCIt synonyms : Stage IV Esophagus Squamous Cell Carcinoma; Stage IV Squamous Cell Carcinoma of the Esophagus; Stage IV Squamous Cell Carcinoma of Esophagus; Esophageal Squamous Cell Carcinoma Stage IV; Stage IV Esophageal Squamous Cell Carcinoma;
NCIt related terms : Stage IV Esophageal Squamous Cell Cancer;
NCIt definition : Stage IV includes: Any T, Any N, M1, Any G, Tumor location: Any. M1: Distant metastasis.
Tumor location: Location of the primary cancer site is defined by the position of
the upper (proximal) edge of the tumor in the esophagus. (AJCC 7th ed.);