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Transient homonymous hemianopia in a case of posterior reversible encephalopathy syndrome Hidenori Nagahama 1,2 , Tadashi Mine 1 , Hiromu Minagawa 3,4 , Soichiro Yamamoto 1,2 , Hiroshi Enaida 1 1Department of Ophthalmology, Saga University Faculty of Medicine 2Department of Ophthalmology, Nagasaki Harbor Medical Center 3Division of Neurology, Department of Internal Medicine, Saga University Faculty of Medicine 4Department of Neurology, Takagi Hospital pp.693-698
Published Date 2020/6/15
DOI https://doi.org/10.11477/mf.1410213583
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Abstract Purpose:To report a case of posterior reversible encephalopathy syndrome(PRES)who developed transient homonymous hemianopia.

Case:A 52-year-old man was referred to us for suddenly impaired visual field. He had headache, seizure and disturbed consciousness 6 weeks before. Magnetic resonance imaging(MRI)showed hyperintensity lesions with vascular edema in bilateral occipital lobes, leading to the diagnosis of PRES.

Findings and Clinical Course:Visual acuity was normal in either eye. Perimetry showed left homonymous hemianopia. Arterial spin labeling(ASL)showed increased blood flow in the right occipital lobe, suggesting that the hemianopia was one of the clinical manifestations of PRES. Complaint about visual field improved after 2 days. Left homonymous hemianopia of visual field impairment for 11 months until present.

Conclusion:This case illustrates that transient homonymous hemianopia may be one of the clinical manifestations of PRES and that MRI may be useful for the diagnosis.


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