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Figure 2. CSF cytology prepared with cell sedimentation chamber. (A) Cryptococcusgatti with Chinese ink staining, ×100; (B) Cryptococcusgatti with Chinese ink staining, ×400; (C) eosinophil pleocytosis in CSF of a patient with Angiostrongylus cantonesis, MGG staining, ×200; (D) lymphoma cells in CSF from a patient with PCNSL, MGG staining, ×200; (E) CD20 positive lymphoma cells in CSF, immunocytochemistry, ×200; (F) Ki-67 index: 60%, immunocytochemistry, ×200. CSF: cerebrospinal fluid; MGG: May-Grunwald-Giemsa; PCNSL: primary central nervous system lymphoma