Subglottic Cancer pT4b TNM Finding v8

**Semantic type:** Finding

**Definition:** Subglottic cancer with very advanced local disease. Tumor invades prevertebral space, encases carotid artery, or invades mediastinal structures. (from AJCC 8th Ed.)

**Synonyms:** - Subglottic Carcinoma pT4b TNM Finding v8