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TABLE 11-8. COMPLICATIONS OF LUMBAR PUNCTURE

1. Post-tap headache (from fluid leakage through dural tear)
2. Traumatic tap (obscuring the clinical picture)
3. Subdural collection of fluid (may interfere with subsequent studies [cisternogram, myelogram] or with subsequent lumbar punctures, may show falsely elevated level of protein from stagnation)
4. Herniation with cerebral mass lesions
5. Deterioration of spinal compression with cord tumors
6. Subdural or epidural hemorrhage (in patients with coagulation deficit)