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| Type | Number | Confirmed/probable/possible |
|---|---|---|
| IA | 2 | Confirmed |
| IB | 3 | Confirmed |
| IC | 1 | Confirmed |
| ID | 0 | – |
| IIA | 0 | – |
| IIB | 7 | Probable |
| IIC | 3 | Probable |
| IID | 0 | – |
*, based on EANO-ESMO Clinical Practice Guidelines for diagnosis, treatment, and follow-up of patients with leptomeningeal metastasis from solid tumors. SLM, spinal leptomeningeal metastasis; EANO-ESMO, European Association of Neuro-Oncology-European Society for Medical Oncology.
