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Spinal tumors

Intradural Spinal Tumors

4-10% rare
Location, location, location:

Intramedullary (within the cord):
- Ependymoma (central, syrinx, hemosiderin capping, peritumoral cysts, scoliosis, bony remodeling)
- Astrocytoma (eccentric, infiltrative, long cord segments, ill-defined margins. more common in children)
- Hemangioblastoma (hyperintense, vascular)
- Mets (a lot of edema)

- vascular lesion: cavernous malf, dural AVF, spinal cord infarct
- inflammatory: demyeliation, transverse myelitis, spinal cord abscess

Intradural, extramedullary (within the dural sac but outside cord):
- Schwannoma (targetoid - T2 hyperintense rim and central area of low signal, lumbar cord, hemorrhage, vascular changes, cyst formation, fatty degeneration, most common intradural extramedullary tu)
- Meningioma (dural tail, females 40-60, 2nd most common intradural extramedullary tu)
- Neurofibroma
- Paraganglioma - no symptoms
- Ganglioneuroma, Ganglioglioma
- Mets
- Neurofibrosarcoma

Mimics: lipoma, epidermid, dermoid, neurenteric cyst, arachnoid cyst

Cauda equina:
- Mixopapillary ependymoma: WHO Grade 1 lesion, young adult men,
- Extramedullary: spinal paraganglioma (cap sign)
- Intramedullary tumors

All tu cause: T2 hyperintensity, Enlarged cord, Bone rmeodeling

- disk extrusion,
- hematoma,
- osteoblastoma,
- mets