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.
Somatostatin-producing NETs arising from the papilla of Vater. Macroscopic findings show the solid, polypoid mass in the papilla of Vater (A). The tumor is arranged in a trabecular pattern with pseudoglandular structures (H and E stain, B: low power view, C: high power view). Psammoma bodies are present (C). Immunohistochemically, the tumor cells are positive for somatostatin (D).
