Fig. 2

CSF cytology of leptomeningeal malignancies. CSF cytology of tumor cells (spontaneous cell sedimentation technique, May-Gruwald-Giemsa staining ×200). (A) Patient 8: leptomeningeal metastases of breast cancer. (B) Patient 23: diffuse midline glioma. (C) Patient 30: CNS B-cell lymphoma. (D) Patient 34: rhabdomyosarcoma