Figure 3
From: Alpha-fetoprotein-producing early rectal carcinoma: a rare case report and review
Microscopic findings. (A) Microscopic evaluation with hematoxylin-eosin staining of the tumor reveals columnar neoplastic cells with clear cytoplasm (original magnification, ×20). (B) Immunohistochemical staining of the tumor using an antibody against AFP. Diffused and strong positive staining is observed in the cytoplasm of the neoplastic cells (original magnification, ×20). (C) Elastic Van Gieson staining of the tumor reveals venous invasion by the adenocarcinoma (original magnification, ×25).