Posterior Reversible Encephalopathy Syndrome during Recovery from Acute Kidney Injury after Hepatitis A Infection

The patient was a 25-year-old healthy male who experienced fever, chills, and abdominal pain for 5 days prior to the hospital visit. He was diagnosed with acute hepatitis A, and at admission he presented with anuric acute kidney injury and hepatic encephalopathy. He received continuous renal replacement therapy followed by intermittent regular hemodialysis. His urine output increased to 1,610 ml/day after 31 days. On day 32, he suddenly developed a headache and visual disturbance and experienced three short convulsions, which were followed by postictal confusion and high fever. T2 and FLAIR MRI images of the brain revealed hyperintense signal alterations in bilateral subcortical regions of the temporoparietal and occipital lobes, consistent with posterior reversible encephalopathy syndrome. His mental status was fully recovered after 7 h of conservative treatment, including antihypertensive therapy. On hospital day 56, the renal function of the patient had recovered, and he was discharged without neurologic sequelae.