Case Report

Isolated Central Nervous System Involvement after Brentuximab Vedotin Treatment for HIV-Positive ALK-Negative Anaplastic Large Cell Lymphoma

Figure 1

Diffuse infiltration of atypical lymphoid cells observed via hematoxylin and eosin (HE) staining (a) (bar = 20 μm). Immunohistochemical staining of the atypical lymphoid cells was positive for CD3 (b), CD30 (c), and negative for anaplastic lymphoma kinase (ALK) (d) (bar = 50 μm).
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