23-year-old man presented with headache and confusion. His CSF showed the following:
Appearance: Clear and colourless
WBC = 850 / ul
Polymorphs = 1%
Lymphocytes = 99%
Erythrocytes = 70 /ul
Protein = 3.92 g/L (0.15 – 0.45)
Glucose = 2.2 mmol/L (2.8 – 4.4)
No bacteria seen
CSF Bilirubin = 0.0269 (< 0.0071)
Questions:
- Explain these findings
- What are the causes of elevated CSF protein