May Be Caused by

 Common

Astrocytoma

Choroid plexus cyst

Choroid plexus papilloma

Colloid cyst of third ventricle

Cysticercosis

Ependymoma

Hemangioma

Meningioma

 Uncommon

Arachnoid cyst

Arteriovenous malformation

Choroid plexus carcinoma

Dermoid

Ependymal cyst

Ependymoblastoma

Epidermoid

Hemangioblastoma

Hematoma

Lymphoma

Medulloblastoma

Metastasis

Neuroblastoma

Neurocytoma

Oligodendroglioma

Sturge-Weber syndrome

Subependymal nodule

Subependymoma

Teratoma

Trapped ventricle

Tuberous sclerosis