HPV-positive oropharyngeal cancer
Oropharyngeal squamous cell carcinoma associated with human papillomavirus infection, particularly HPV-16.
Full Definition
HPV-positive oropharyngeal cancer represents a distinct clinical entity of oropharyngeal squamous cell carcinoma caused by human papillomavirus infection, predominantly HPV type 16. This subtype has shown dramatically increasing incidence in developed countries and affects younger patients with fewer traditional risk factors like tobacco and alcohol use. HPV-positive tumors typically arise in the tonsillar crypts and base of tongue, often presenting as cystic cervical lymph node metastases. These cancers have a significantly better prognosis than HPV-negative oropharyngeal cancers and may be candidates for treatment de-escalation protocols.
Usage
Usage note: Always specify HPV status when discussing oropharyngeal cancer prognosis and treatment.
In Context
- "p16 immunohistochemistry confirmed HPV-positive oropharyngeal cancer in this non-smoking patient." — Pathology report
- "The favorable prognosis of HPV-positive oropharyngeal cancer has prompted investigation of de-escalated treatment protocols." — Clinical trial protocol