Fig. 2From: Characterization, treatment and prognosis of retinoblastoma with central nervous system metastasisRepresentative images of CSF cytology and histopathology in retinoblastoma patients with CNS metastasis. Retinoblastoma cells as shown in the CSF smear (a, × 200), and tumor cells spreading in the optic nerve (b, × 200), left temporal lobe (c, × 100), mesencephalon (d,× 100), and cerebellomedullary (e,× 100) as stained by haematoxylin and eosin. CSF: cerebrospinal fluid; CNS: central nervous systemBack to article page