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Table 4 Staging of retinoblastoma

From: Retinoblastoma

Ocular fundus under general anesthesia + Any patient with retinoblastoma Schema, photographs, ultrasonography Reese grouping, new grouping
Brain and orbit CT scan or MRI + Almost any patient with retinoblastoma (except neonatal screened patients with tumor respecting the head of optic nerve)
CSF cytology Bone marrow cytohistology + When enucleation is necessary and shows histopathologic risk factors
Brain and spinal axis MRI Bone scan Only in case of orbital, lymph node and/or distant metastatic diseases
  1. CT – computed tomography
  2. MRI – magnetic resonance imaging
  3. CSF – cerebrospinal fluid