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Pathological diagnoses of fourth-ventricular tumors.
| Diagnosis | Patients Number (proportion) |
|---|---|
| Ependymoma | 21 (28.4%) |
| Medulloblastoma | 17 (23%) |
| Pilocytic astrocytoma | 13 (17.6%) |
| Subependymoma | 6 (8.1%) |
| Choroid plexus papilloma | 4 (5.4%) |
| Atypical teratoid/rhabdoid tumor | 4 (5.4%) |
| Hemangioblastoma | 3 (4.1%) |
| Metastasis | 3 (4.1%) |
| Lymphoma | 1 (1.4%) |
| Rosette-forming glioneuronal tumor | 1 (1.4%) |
| Neurocytoma | 1 (1.4%) |
| Total | 74 (100%) |
