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Differential Considerations: Nodular Leptomeningeal/Cranial Nerve Enhancement

Leptomeningeal Carcinomatosis/Subarachnoid Spread of Neoplasm

Infection: Tuberculosis meningitis

Sarcoidosis

(NF-2).

CNS Primary

Children

Medulloblastoma, Ependymoma, Pineal region neoplasms, Choroid plexus papilloma, Retinoblastoma

Adults

GBM, Lymphoma, Oligodendroglioma

Non-CNS Primary

Children

Neuroblastoma, Lymphoma/Leukemia

Adults

Lymphoma/Leukemia, Breast, Lung, Melanoma, GI.