Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
a p16INK4a positive OPSC (A) (40×); a p16INK4a negative OPSC b (40×). The histologic features (H & E stain) of a HPV-driven (p16INK4a positive and HPV positive) OPSC demonstrating non-keratinizing squamous cell carcinoma at lower right, surrounded by chronic inflammation with representative normal squamous epithelium seen at upper left c (20×)
