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Case Reports
Cortical blindness and posterior reversible encephalopathy syndrome in an older patient.
- Sabrina Ait, Thomas Gilbert, Francois Cotton, and Marc Bonnefoy.
- Service de Médecine Gériatrique, Centre Hospitalier Lyon-Sud, Pierre-Bénite, France.
- BMJ Case Rep. 2012 May 26; 2012.
AbstractPosterior reversible encephalopathy syndrome (PRES) is a clinical and radiological entity. It associates, to varying extents, neurological symptoms such as headaches, confusion, seizures and visual alterations from haemianopsia to cortical blindness. The diagnosis relies on brain MRI, showing signs of subcortical and cortical oedema in the posterior regions of the brain, with hypersignals in T2/fluid attenuated inversion recovery (FLAIR) or diffusion sequences. With early diagnosis and control of the causal factors, the symptoms and radiological signs can be - as the name implies - totally regressive. PRES can be caused by various heterogeneous factors, such as hypertension, side effect of drug therapies, eclampsia, sepsis or autoimmune diseases. The authors report here the case of an 86-year-old woman, presenting totally regressive cortical blindness and seizures, with compatible imaging.
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