The age ranged from 5 years to 49 years with mean age of 26.6 years.Pathologically, there were 5 medulloblastomas, 5 ependymomas, 2 epidermoids, 2 brain cysticercosis, and 3 choroid plexus papillomas.

• 其中髓母细胞瘤5例，室管膜瘤5例，表皮样囊肿2例，脑囊虫病2例，脉络丛乳头状瘤3例。