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.
Immunohistochemical (IHC) staining for cytokeratin (A), PD-L1 (B), vimentin (C), and melan-A (D), respectively, the Horseradish Peroxidase (HRP) method, neoplastic cells formed the glandular appearance and were intensely positive on cytokeratin and PD-L1, and negative on vimentin and melan-A. The surrounding connective tissue cells were positive on vimentin ×400.
