Abstract
Posterior reversible encephalopathy syndrome, also known as reversible posterior leukoencephalopathy
syndrome or reversible posterior cerebral edema syndrome, is a recently described
disorder of the cerebrovascular autoregulation system with multiple etiologies, most
of which cause acute hypertension. Its clinical symptoms include headache, decreased
alertness, mental abnormalities such as confusion, diminished spontaneity of speech,
and changed behavior, stupor, seizures, vomiting, and abnormalities of visual perception
such as cortical blindness. Radiologic appearance consists in cortical/subcortical
posterior cerebral artery territory lesions. We describe two cases of this disease
in pediatric patients caused by different clinical conditions but supported by the
same pathophysiology. Early recognition of posterior reversible encephalopathy syndrome
as a complication during different diseases and therapies in childhood may facilitate
precise diagnosis and appropriate treatment.
Keywords
Posterior reversible encephalopathy syndrome (PRES) - PRES associated diseases - magnetic
resonance imaging - child
