J Korean Radiol Soc.  1988 Feb;24(1):57-62. 10.3348/jkrs.1988.24.1.57.

Computed tomography of arachnoid cyst

• Jung MG
• Bae WT
• Kim JK
• Park JG
• Kang HK
• Chung HD

• KMID: 2359310
• DOI: http://doi.org/10.3348/jkrs.1988.24.1.57

Abstract

The preoperative diagnosis of intracranial arachnoid cysts has been simplified, and made more rapid andaccurate with CT. Using CT cisternography, detailed anatomic and phsiologic informations of arachnoid cysts couldbe obtained. CT features of pathologically proven 21 arachnoid cysts that were examined at Chonnam NationalUniversity Hospitoal from June 1983 to May 1987 were analyzed. The results were as follows: 1. Prevalent age groupwas the 1st decade(8 cases) and male to female ratio was 17:4. 2. Clinical features were related to the locationof arachnoid cyst, common symptoms were headache(53.3%), convulsion, mental change and walking disturbance. 3.Locations of the arachnoid cyst were in supratentorial region(15 cases), most in middle cranial fossa(12 cases),and infratentorial region (6 cases), common at the retrocerebellar cisternal space(3 cases). 4. Shapes ofarachnoid cyst were biconvex with straight inner margin(8 cases), shperical(7 cases), simple binconvex (3 cases)and others(3 cases). 5. Size of the arachnoid cyst, in the greatest dimenstion, was ranged from 2cm to 9cm andcommonly distributed between 3cm to 5cm (14 cases). 6. Of all 14 cases, who did CT cisternography usingmetrizamide (11 cases) and iopamidol (3 cases), 2 cases had communication with the subarachnoid space.

MeSH Terms

Arachnoid Cysts
Arachnoid*
Diagnosis
Female
Humans
Iopamidol
Jeollanam-do
Male
Seizures
Subarachnoid Space
Walking
Iopamidol