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.
H&E stained gallbladder neuroendocrine neoplasm (A). Neoplastic cells exhibited positive immunoreactivity for chromogranin A (B), neuron specific enolase (C), and synaptophysin (D); cytokeratin 7 staining was negative (E) and few neoplastic cells were Ki-67 positive (F). Scale Bar = 50μm.
