[Reversible posterior leukoencephalopathy or brain tumor--case report].

Reversible posterior leukoencephalopathy (RPLE) syndrome is clinically associated with headache, altered consciousness, seizures and visual symptoms. On brain magnetic resonance imaging (MRI) there is edema predominantly affecting white matter of the parietooccipital brain regions. Initially, this syndrome was believed to be secondary to hypertension, renal disease, or immunosuppressive therapy.