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.
Laryngeal preneoplastic and neoplastic conditions stained by antibodies to factor VIII. (A) Vessels in the stroma of unaltered epithelium. (B) Severe epithelial dysplasia with prominent blood vessels. (C) Well differentiated squamous cell carcinoma with vessels in circumferential arrangements. (D–F) Moderately differentiated laryngeal squamous cell carcinoma with vessels extending from the stroma in the direction of the epithelial basement membrane (directional angiogenesis).
