Arachnoid Cyst

Definition 1

An intracranial or spinal cyst which contains fluid and is composed of arachnoid cells. Intracranial arachnoid cysts may present with headaches, seizures and hydrocephalus. Spinal arachnoid cysts may present with symptoms of radiculopathy. (NCI Thesaurus)

Definition 2

Intracranial or spinal cavities containing a cerebrospinal-like fluid, the wall of which is composed of arachnoidal cells. They are most often developmental or related to trauma. Intracranial arachnoid cysts usually occur adjacent to arachnoidal cistern and may present with HYDROCEPHALUS; HEADACHE; SEIZURES; and focal neurologic signs. Spinal arachnoid cysts may be extradural, intradural, or perineural and tend to present with signs and symptoms indicative of a RADICULOPATHY. (From Joynt, Clinical Neurology, 1994, Ch44, pp105-115) (NLM, Medical Subject Headings)

YOU MAY ALSO LIKE

Arachidonic Acid Measurement

The determination of the amount of arachidonic acid present in a sample.

Arachidonic Acid

An unsaturated, essential fatty acid. It is found in animal and human fat as well as in the liver, brain, and glandular…

Arachidonate 5-Lipoxygenase

Arachidonate 5-lipoxygenase protein (674 aa, ~78 kDa) is encoded by the human ALOX5 gene. This protein plays a role in the synthesis…

Arachidonate 15-Lipoxygenase

Arachidonate 15-lipoxygenase (662 aa, ~75 kDa) is encoded by the human ALOX15 gene. This protein plays a role in leukotriene metabolism. …

Arachidonate 12-Lipoxygenase, 12S-Type

Arachidonate 12-lipoxygenase, 12S-type (663 aa, ~76 kDa) is encoded by the human ALOX12 gene. This protein plays a role in both fatty…

Arachidonate 12-Lipoxygenase, 12R-Type

Arachidonate 12-lipoxygenase, 12R-type (701 aa, ~80 kDa) is encoded by the human ALOX12B gene. This protein is involved in the oxidation of…