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Washington University Experience | MYELIN (IMMUNE-MEDIATED) | Sentinel & Steroid Rx Lesions | 3D1 Sentinel Lesion (Case 3 - 1st Bx) CD20 3
3D1-4 The presence of atypical B-cells, demonstrated by CD20 immunophenotype, includes scattered patches (#3D1) and small perivascular collections (3D2-4). Note the active degeneration of B cells shown in 3D2-4 at several magnifications. (CD20 IHC)
