Does anyone know of a blocking reagent to eliminate endogenous mitochondrial 
peroxidase? I have a tumor case that is staining positive (nonspecifically) 
for everything and the pathologist seem s to think it's caused by what he's 
calling "Mitochondrial peroxidase" in the tumor cells. Any ideas how to block this?

Have a merry Christmas,
Steven M. Crochiere, HT(ASCP)
Histology Supervisor
LifePath Partners @ Mercy Medical Center
Springfield, MA 01104
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