subarachnoid cisterns

sub·ar·ach·noid cis·terns

[TA]
widening portions of the subarachnoid space within the cranium where the arachnoid bridges over a depression on the surface of the brain; also present in the spinal cord as the lumbar cistern.
Synonym(s): cisternae subarachnoideae [TA]
References in periodicals archive ?
Next, the brain was surveyed for any evidence of pneumocephalus, hydrocephalus, cerebral oedema, midline shift, or compression of the subarachnoid cisterns at the base of the brain.
Pan-amoebic meningoencephalitis primarily affects the base of brain and basilar subarachnoid cisterns, and because one of the hallmarks of diffuse cerebral oedema is effacement of the basilar cisterns.
Computerized tomography was repeated and intraventricular fresh hemorrhage was found in occipital horns but not in subarachnoid cisterns (Figure 2).