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 were stained by Grimelius silver (A), and positive for immunohistochemical staining of Chromogranin-A (B) and for Synaptophysin (C). Clear cells were completely negative for Keratin, but positive in the intercalated non-neoplastic glands (D).
