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Related to subarachnoid space: Subarachnoid hemorrhage
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The increased density in the subarachnoid space in pseudo-subarachnoid hemorrhage has been postulated to be due to engorgement of pial vasculature combined with heightened vascular conspicuity due to decreased parenchymal attenuation.
3) Attenuated flow is often noted between the suboccipital subarachnoid space and the craniocervical junction, which improves after craniotomy.
Measurement of shift of the cauda equina in the subarachnoid space by changing position.
It then exits via three small openings into the subarachnoid space where it circulates around the surface of the spinal cord and brain.
Injection of iohexol into the cerebellomedullary cistern, which communicates with the subarachnoid space, was successful on the first attempt in 11 of the 12 pigeons.
This overlies the subarachnoid space filled with cerebrospinal fluid (CSF).
Extension through the superior aspect of the left cerebellar hemisphere into the subarachnoid space was noted during the surgery.
While hospitalized, she received a CT scan, IV medications for pain and anxiety, and a lumbar puncture (spinal tap), a painful procedure where a large needle is placed into the subarachnoid space in the spinal canal of the low back and fluid is withdrawn from the space with the syringe.
In our patient, who had been diagnosed with some congenital genitourinary anomalies, the possibility exists of a midline septum in the subarachnoid space which could have led to such a distribution of anaesthesia.