As expected based on previous studies [7, 9], total protein (median in mg/l (IQR); PRES 419 (362.5), control 360 (312.7), p < 0.001) and albumin (median in mg/l (IQR); PRES 215 (166.5), control 187 (153.7), p < 0.001) were elevated in the CSF of PRES patients (Fig. 3a). Here, ALB is linked to Posterior Leukoencephalopathy Syndrome.