Horner’s Syndrome and Multiple Cranial Nerve Palsies in a Patient with a Giant Internal Carotid Artery Aneurysm.

The cavernous sinus is a complex anatomical space with multiple neuro-vascular structures. Due to its anatomical complexity, patients with internal carotid artery aneurysms within the cavernous sinus can present with a variety of symptoms. This is a case presentation of a 73-year-old patient with a right-sided intracavernous internal carotid artery aneurysm who declined neurosurgical intervention, opting for conservative management. The evolution of symptoms is highlighted, from intermittent changes in vision to further development of proptosis, associated with the reduction of vision, Horner’s syndrome, sixth nerve palsy, and disc swelling. This culminated in a severe reduction in vision due to optic atrophy, restriction of eye movements with maintained adduction only, dilatation of the pupil, and forehead/cheek hypoesthesia. [ABSTRACT FROM AUTHOR]