PubMed · 471091
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K G Go. 1979-07-14. [Arachnoidal cysts].. https://pubmed.ncbi.nlm.nih.gov/471091/
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Two cases of tuberculous meningoencephalitis mimicking regressive or transient ischaemic attacks or migraine with aura are reported. The value of MRI with gadolinium in demonstrating inflammation of the leptomeninges, of transcranial Doppler sonography in detecting segmentary accelerations in the basal cerebral arteries suggestive of arteritis and of CSF examination with polymerase chain reaction (PCR) are emphasized.
The author presents the possible mechanism that probably lead to deterioration of neurological finding after changes of parenchymatous pressure of neural tissue in the course of lumbar puncture, ventriculography or some neurosurgical interventions. The possible cause are arachnoidal adhesions impeding free circulation of cerebrospinal fluid. "Trapped" cerebrospinal fluid leads to the ischemia of the neural tissue because of relative increasing of cerebrospinal fluid pressure.