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.
(a and b) In Churg Strauss disease, a necrotizing small vessel vasculitis morphologically indistinguishable from microscopic polyangiitis may be observed. This pattern is seen in patients who are ANCA positive (a). In contrast in ANCA negative Churg Strauss patients a necrotizing vasculitis is not seen although the vessels may be surrounded and permeated by an eosinophilic infiltrate
