May Be Caused by

 Common

Craniopharyngioma

Hypothalamic glioma

Optic chiasm glioma

Pituitary adenoma

Thrombosed aneurysm

 Uncommon

Adenohypophysitis

Choristoma

Hamartoma of tuber cinereum

Langerhans cell histiocytosis

Lymphoma

Metastasis

Pineal germinoma

Pineocytoma

Sarcoidosis

Sphenoid sinus mucocele

Sphenoid sinus neoplasm

Tuberculosis