May Be Caused by

 Common

Abscess

Contusion

Edema

Epidural empyema

Epidural hematoma

Epidural hygroma

Intracerebral hematoma

Low grade glioma

Metastasis

Oligodendroglioma

Subdural empyema

Subdural hematoma

Subdural hygroma

 Uncommon

Arachnoid cyst

Avascular meningioma

Colloid cyst

Corpus callosum lipoma

Dermoid

Epidermoid

Langerhans cell histiocytosis

Meningeal neoplasm

Neurocysticercosis

Parasitic cyst

Porencephalic cyst

Teratoma

Tuberculoma