Definition of subarachnoid in English:
subarachnoid
adjective ˌsvbəˈraknɔɪdˌsəbəˈraknoid
Anatomy Denoting or occurring in the fluid-filled space around the brain between the arachnoid membrane and the pia mater, through which major blood vessels pass.
Example sentencesExamples
- I have been through a serious medical ordeal, involving a subarachnoid aneurysm (blood vessel in my brain leaking) and subsequent brain surgery.
- Injection of local anesthetic into the epidural or subarachnoid space during brachial plexus block can result in a total spinal or spinal cord injury.
- Intracranial and subarachnoid hemorrhages may evolve into intraventricular hemorrhage and hydrocephalus.
- Major findings include subdural and subarachnoid hemorrhages and diffuse axonal injury in the brain and retinal hemorrhages in the eyes.
- Local extension, rapid growth, invasion of adjacent structures, and CNS spread via the ventricular system or subarachnoid space are often suggestive of, but not always diagnostic of, malignancy.