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Dislocation of the pulsating globe on slight pressure against the upper lid

A young ship carpenter, a patient of neurosurgeon Harvey Cushing (1869-1939), with pulsating exophthalmos from a traumatic carotid-cavernous fistula (what Cushing labeled an "arteriovenous aneurysm"), a complication of basal skull fracture, showing dislocation of the pulsating globe on slight pressure against the upper lid. (From: Cushing 1907. Public domain.)