[Histonet] VEGF - question

[Gudrun Lang]

Maybe a stupid question. Are endothel cells always stained positiv with
vascular endothelial growth factor?

I have got a tissue of a pyogenic granuloma as a positiv control from my
pathologist. The endothel cells of  the vessels are clear negativ, the
surrounding area is positiv.

Is this the expected result or is there any mistake?

 

Thanks for your help.

Gudrun Lang