MedicineNeurosurgeryOncologyCranial Nerve DisordersHematologic OncologyNeuro-oncologyCentral Nervous System LymphomaCentral Nervous System TumorsCranial Nerve InfectionsHematologic MalignanciesLymphoid TumorsNervous System PathologyCranial Nerve Tumor InfiltrationIntracranial InjuryNeoplastic Spinal Cord CompressionNeuroaxis InvolvementRetrospective Case Study