Reversible posterior leukoencephalopathy syndrome in a patient with hypertensive encephalopathy

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Abstract

A 58-year-old male presented with reversible posterior leukoencephalopathy syndrome (RPLS) manifesting as headache, papilledema, and renal hypertension. T2-weighted magnetic resonance (MR) imaging showed hyperintensity lesions in the medulla, pons, bilateral thalami, and bilateral deep white matter of the parieto-occipital lobes. The pons was swollen. Diffusion-weighted MR imaging did not show increased intensity in these lesions. The lesions disappeared with improvement of clinical symptoms after treatment for hypertension. These findings suggested the lesions were vasogenic edema and the diagnosis was RPLS. T2-weighted and diffusion-weighted MR imaging are useful modalities to differentiate RPLS from other central nervous system abnormalities such as infarction, multiple sclerosis, and central pontine myelinolysis. The clinical and neuroradiological findings of RPLS can be reversed by timely initiation of treatment for the causative factor.

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Yoshida, K., Yamamoto, T., Mori, K., & Maeda, M. (2001). Reversible posterior leukoencephalopathy syndrome in a patient with hypertensive encephalopathy. Neurologia Medico-Chirurgica, 41(7), 364–369. https://doi.org/10.2176/nmc.41.364

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