... by most of case studies. With the report of this case we also did a litera-ture review in order to have a better understanding of arachnoid cysts. Currently, the noncogenital causes of arachnoid ... First Hospital of Jilin University, Changchun, 130021, P. R. China 2. Department of Radiology, First Hospital of Jilin University, Changchun, 130021, P. R. China 3. Department of Pathology, ... The commonest type of arachnoid cyst that causes compression of the spinal cord and develop-ment of syringomyelia is the Chiari malformation type I [1]. Other types of arachnoid cysts can...