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Visual Hallucinations in a Patient with Horner's Syndrome Secondary to Internal Carotid Dissection
Amardeep Singh1, Panteleimon Mortzos1, Torben Lykke Sørensen1
1Clinical Eye Research Unit, Department of Ophthalmology, Copenhagen University Hospital Roskilde, Roskilde, Denmark.
Abstract:
A 67-year-old female presented with post-ganglionic Horner's syndrome. In addition to the classical symptoms of Horner's syndrome, the patient reported experiencing frightening complex visual and auditory hallucinations on two different occasions. Magnetic resonance angiography of the cerebrum, neck and upper thorax revealed internal carotid dissection. The symptoms and hallucinatory experiences resolved soon after antiplatelet therapy was commenced. We propose peduncular hallucinosis as the underlying mechanism.
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