have you seen PRES syndrome?

I saw a lady on the ward round on Friday who is mid 70's, has a long history of hypertension that is poorly controlled (BP 180 / 90 -100) and has presented with poor gait, headache and poor memory. A CT head was unremarkable and on discussing it with the neurologist the possibility of PRES came up. She is booked for an MRI but I'm not sure I have ever diagnosed this syndrome and if I have seen it I have failed to diagnose it. How common is this? sadian
Source: Doc2Doc BMJ Cardiology - Category: Cardiology Authors: Source Type: forums