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Washington University Experience | VASCULAR | Vasculitis - PACNS | 16B1 Granulomatous Angiitis (Case 16) A2 CD3 40X
16B1,2 Both T cells (16B1, CD3 IHC) and B cells (16B2, CD20 IHC) are involved in the process. CD3 highlights small T cells in both perivascular lymphocytic infiltrates as well as scattered throughout the brain parenchyma. CD20 highlights small B cells in a predominantly perivascular pattern.
