Arachnoid cyst
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In medicine, arachnoid cysts are "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."[1]
Arachnoid cysts may be classified as:[2][3]
- Type I cysts are extradural without involving of nerve-root fibers
- Type II cysts, also called Tarlov cysts, are extradural and involve nerve-root fibers
- Type III cysts are intradural
References
- ↑ Anonymous (2024), Arachnoid cyst (English). Medical Subject Headings. U.S. National Library of Medicine.
- ↑ Nabors MW, Pait TG, Byrd EB, Karim NO, Davis DO, Kobrine AI et al. (1988). "Updated assessment and current classification of spinal meningeal cysts.". J Neurosurg 68 (3): 366-77. DOI:10.3171/jns.1988.68.3.0366. PMID 3343608. Research Blogging.
- ↑ Brass SD, Dinkin MJ, Williams Z, Krishnamoorthy KS, Copen WA, Freeman SH (2009). "Case Records of the Massachusetts General Hospital. Case 38-2009 - a 16-year-old boy with paroxysmal headaches and visual changes.". N Engl J Med 361 (24): 2367-78. DOI:10.1056/NEJMcpc0905547. PMID 20007563. Research Blogging.