Figure 1.
Signet ring vessels in black circles in two different patients with psoriasis in lesional scalps having active diseases (×100 magnification)
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.