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Washington University Experience | MYELIN (IMMUNE-MEDIATED) | Sentinel & Steroid Rx Lesions | 3H1 Sentinel Lesion (Case 3 - 2nd Bx) CD20 1
3H1,2 The neoplastic cells are strongly immunoreactive for the B-cell marker CD20. Notice that the background of necrotic cells is also immunoreactive, seen better in 3H2 (arrows) (CD20 IHC)
