Stage IV Esophageal Squamous Cell Carcinoma AJCC v7

**Semantic type:** Neoplastic Process

**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.)

**Synonyms:** - Esophageal Squamous Cell Carcinoma Stage IV - Stage IV Esophageal Squamous Cell Cancer - Stage IV Esophageal Squamous Cell Carcinoma - Stage IV Esophagus Squamous Cell Carcinoma - Stage IV Squamous Cell Carcinoma of Esophagus - Stage IV Squamous Cell Carcinoma of the Esophagus