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5 Cards in this Set
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- Back
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SPINAL CORD COMPRESSION
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Criteria
No CSF seen around the cord (spinal block) Narrowed AP diameter of cord (< 7 mm) Deformity of cord Causes Infection (TB, pyogenic) Compression fracture Malignancy Trauma Spondylosis and disk disease Hemiated nucleus, hypertrophy of ligaments Osteophyte, facet hypertrophy Primary bone disorders (Paget's disease) Other causes Benign tumors (e.g., angioma, cysts,lipoma) Epidural hematoma |
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INTRAMEDULLARY LESIONS
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Tumor
Astrocytoma (most common) Ependymoma (second most common) Hemangioblastoma Metastases (rare) Demyelinating disease myelitis Syringohydromyelia Tumor related Chiari malformation AVM Trauma (contusion) |
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INTRADURAL EXTRAMEDULLARY TUMORS
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Nerve sheath tumor (most common)
Neurofibroma Schwannoma Meningioma (80% thoracic) Drop metastases Lipoma Teratomatous lesion Arachnoid cyst Arachnoiditis/meningitis AVM/AVF |
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EXTRADURAL LESIONS
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Disk
Metastases Epidural abscess Hematoma Other Lipomatosis (thoracic) Synovial cyst |
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CYSTIC SPINAL LESION (SYRINGOHYDROMYELIA)
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Criteria: Syringomyelia: cavity in spinal cord; may or may not communicate with
central canal; for hydromyelia: dilatation of central canal. Cannot be differentiated with imaging. Cause: Primary Chiari/malformations Spinal dysraphism D W Diastematomyelia Acquired Tumor Astrocytoma Ependymoma Inflammatory Arachnoiditis /meningitis SAH Trauma Spinal cord injury Vascular insult |
