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.
Hematoxylin and eosin staining of tumor cells. A: Image showing diffuse growth replacing the mucosa and invading the muscularis propria; B: Image showing densely packed tumors formed by squamous cells; C: Image showing squamous cell carcinoma with keratin pearl formation; D: Image showing that tumor cell proliferation is markedly atypical, and karyokinesis is increased.
