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.
Tumor cells show strong and diffuse positivity for CK14 staining (4x) (a) and cytoplasmic and peri-nuclear positivity for Chromogranin A staining (10x) (b). MCPyV staining (10x): granular nuclear positivity for specific Merkel Cell polyomavirus large T antigen (c). CK20 staining (10x): tumor cells are completely negative (d)
