pulsating exophthalmos due to an arteriovenous fistula of the orbit.
[medical-dictionary.thefreedictionary.com]
[…] sinus or dural-cavernous sinus fistula Pulsating proptosis with an orbital bruit Magnetic resonance angiography Cavernous sinus thrombosis Ophthalmoplegia, headache, ptosis
[merckmanuals.com]
Palpitations, anxiety, increased appetite, weight loss, insomnia, goiter, pretibial myxedema (see Hyperthyroidism) Thyroid function tests Sometimes CT or MRI of orbits Carotid-cavernous
[msdmanuals.com]