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.
Sinonasal lymphoepithelial carcinoma. A, Tumor nests are composed of syncytial polygonal cells with vesicular nuclei and prominent nucleoli obscured by a nonneoplastic lymphoplasmacytic infiltrate. B, Tumor nests are immunoreactive for cytokeratin 5/6 antibody (hematoxylin-eosin, original magnification ×40 [A]; original magnification ×40 [B]).
