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.
Light microscopy of the gastric mucosa. Light microscopy of gastric and duodenal ulcers revealed fibrinoid necrosis, with neutrophils infiltrating the submucosal small arteries in (A) Hematoxylin and Eosin staining (×400), with positive staining of (C) IgM and (D) MPO on the vascular walls.
