the blood shunts from the internal carotid to the cavernous sinus resulting in pulsating exophthalmos , orbital headache , pain , orbital or frontal bruit , loss of visual acuity , diplopia , ophthalmoplegia and the differential diagnosis should include superior orbital fissure syndrome , orbital apex syndrome and cavernous sinus thrombosis .
C0018681
headache
C0030193
pain