Abstract
posterior reversible encephalopathy syndrome (pres) is characterized by headache, confusion, visual disturbances, and seizures [1]. Transient vasogenic edema occurs predominantly within the posterior circulation regions. similar clinical findings are present regardless of the cause. The syndrome can rapidly resolve after proper management. However, pres with only brain stem involvement has been uncommonly described and is usually associated with hypertension [2]. We herein describe a patient with pres who suffered from chronic renal insufficiency and in whom the pons was solely involved. We also reviewed the literature to investigate the potential pathophysiological mechanism of pres.
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