Oropharyngeal (HPV-Associated) Cancer pT4 TNM Finding v9

**Semantic type:** Finding

**Definition:** Oropharyngeal (HPV-associated) cancer with tumor invading any of the following: larynx, deep/extrinsic muscle of the tongue (genioglossus, hyoglossus, palatoglossus, styloglossus), pterygoid muscles (medial and/or lateral), hard palate, mandible, pterygoid plates (medial and/or lateral), nasopharynx, skull base, or encasing carotid artery. Note: mucosal extension to lingual surface of epiglottis from primary tumors of the base of the tongue and vallecula does not constitute invasion of the larynx. (from AJCC 9th Ed.)

**Synonyms:** - Oropharyngeal (HPV-Associated) Carcinoma pT4 TNM Finding v9 - Oropharyngeal (HPV-Associated) Squamous Cell Carcinoma pT4 TNM Finding v9