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.
Sections of haired skin from 4 dogs contain intravascular aggregates of neoplastic plasma cells adjacent to cutaneous plasmacytomas. A, B. Hematoxylin and eosin. C. Multiple myeloma oncogene 1/interferon regulatory factor 4 (MUM1/IRF4) immunohistochemistry (IHC). D. Factor VIII–related antigen IHC. Intraluminal cells (*) demonstrate strong nuclear labeling for MUM1. Attenuated superficial cells within the intraluminal mass do not label for factor VIII–related antigen.
