May Be Caused by

 Common

Acute hematoma

Aneurysm

Astrocytoma

Breast cancer

Cerebritis

Colon carcinoma

Encephalitis

Glioblastoma

Glioma

Hamartoma

Infarction

Lymphoma

Meningioma

Metastases

Metastasis

Oligodendroglioma

Osteosarcoma

Pituitary adenoma

Prostate carcinoma

Schwannoma

 Uncommon

Chordoma

Choroid plexus papilloma

Colloid cyst

Craniopharyngioma

Ependymoma

Gliosis

Granuloma

Medulloblastoma

Pinealoma

Pineoblastoma

Radiation necrosis

Sarcoma

Subependymoma

Tuberculoma