Synonyms

Localized erosion about the optic canal

May Be Caused by

 Common

Internal carotid artery aneurysm

Nasal cavity neoplasm

Orbital neoplasm

Pituitary adenoma

Sphenoid sinus neoplasm

 Uncommon

Anterior fossa neoplasm

Astrocytoma

Craniopharyngioma

Glioma

Granuloma

Langerhans cell histiocytosis

Meningioma

Metastasis

Neurofibroma

Neurofibromatosis

Orbital dysplasia

Sarcoidosis

Sphenoid sinus mucocele

Surgical defect

Tuberculosis