Acute asymmetric upper nasal quandrantanopsia caused by a chiasmal colloid cyst in a patient with multiple sclerosis and bilateral retrobulbar neuritis.
OBJECTIVE
To report a patient with multiple sclerosis and a history of sequential bilateral retrobulbar neuritis, who developed new onset of highly asymmetric upper quadrantanopsia.


METHODS
Interventional case report.


METHODS
A 36-year-old woman with multiple sclerosis and bilateral retrobulbar neuritis developed an acute asymmetric upper nasal quadrantanopsia.


RESULTS
Magnetic resonance imaging of the brain revealed a cyst that caused chiasmal compression and bilateral visual field defects.


CONCLUSIONS
New onset of bilateral visual field defects in a patient with diagnosed multiple sclerosis is likely to be caused by a new attack of the demyelinating disease. In this case, a newly diagnosed chiasmal colloid cyst was the cause of visual field defects.
Killer
H E
HE
Department of Ophthalmology, Kantonsspital Aarau, Aarau, Switzerland. killer@ksa.ch
Flammer
J
J
Wicki
B
B
Laeng
R H
RH
D000208:Acute Disease; D000328:Adult; D003560:Cysts / Q000150:complications* / Q000175:diagnosis; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D009103:Multiple Sclerosis / Q000150:complications* / Q000175:diagnosis; D009897:Optic Chiasm / Q000473:pathology*; D009901:Optic Nerve Diseases / Q000150:complications* / Q000175:diagnosis; D009902:Optic Neuritis / Q000150:complications* / Q000175:diagnosis; D014786:Vision Disorders / Q000175:diagnosis / Q000209:etiology*; D014794:Visual Fields