Crossed quadrant homonymous hemianopsia in a case of multiple sclerosis

Clinical Neurology and Neurosurgery
M CesareoA Missiroli

Abstract

We describe the first report of crossed quadrant hemianopsia (CQHH) occurring in a patient with a well documented clinical history of Multiple Sclerosis (MS). The visual field studied by a Humphrey Field Analyzer (Mod.630, 30-2 program) showed a CQHH, involving right superior quadrants and left inferior ones. Magnetic resonance imaging (MRI) showed two lesions located in both left and right trigone area, corresponding to the geniculocalcarine pathways. CQHH is a very rare visual field defect commonly caused by vertebro-basilar ischemia and attributed to bilateral injury of the calcarine fissure. In the absence of lesions in the primary visual cortex, a direct relationship between the quadrantonopic defect and two small demyelinating lesions in posterior periventricular white matter, corresponding to the geniculocalcarine pathways, is implied.

References

Jun 1, 1975·The British Journal of Ophthalmology·K Hawkins, M M Behrens
Jul 1, 1993·Neurology·F X BorruatJ S Glaser
Nov 1, 1962·Journal of Neurology, Neurosurgery, and Psychiatry·B BROWNELL, J T HUGHES
Apr 1, 1926·The British Journal of Ophthalmology·C H Felix

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Citations

Feb 7, 2020·Journal of Neuro-ophthalmology : the Official Journal of the North American Neuro-Ophthalmology Society·Sarah KamalAndrew G Lee
Mar 6, 2021·Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie·Joseph W FongRonald A Braswell

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