arachnoid cyst
MONDO:0008813Mondo
Findings
No curated finding names arachnoid cyst yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
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. (From Joynt, Clinical Neurology, 1994, Ch44, pp105-115)
Definition from the Mondo Disease Ontology (MONDO:0008813), read 2026-09-29. CC BY 4.0.
Where it sits
- A kind of
- Narrower terms (2)