Proptosis (Exophthalmos)

Graves’ ophthalmopathy
Orbital cellulitis
Orbital pseudotumor
Tumor, eg, hemangioma, optic nerve glioma
Trauma or orbital hemorrhage
Retracted eyelid (normal variant)
Inflammatory disease, eg, Wegener’s granulomatosis, sarcoidosis
Carotid cavernous fistula, dural arteriovenous malformation (AVM), or cavernous sinus thrombosis
Posterior scleritis
Hand-Schuller-Christian disease (eosinophilic granuloma)