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.
Rat liver from day 35 at high dose NNM feeding. Alpha-1-fetoprotein (AFP) immunoreactive ductular epithelial cells (oval cells) in transition towards hepatocytes giving rise to a nodule of hyperplastic appearance; note strong immunoexpression of AFP in both small oval cells and cells with the appearance of small intermediate-sized hepatocytes (original magnification ×160, haematoxylin counterstain).
