Posterior reversible encephalopathy syndrome related to severe hypomagnesaemia

Chronic drug therapies should always be included in the medical approach.The most common aetiology of posterior reversible encephalopathy syndrome is arterial hypertension with poor control and the use of cytotoxic drugs. However, other less common causes, such as severe hypomagnesaemia, should be taken into account.The diagnosis of posterior reversible encephalopathy syndrome is based on neuroimaging findings in the correct clinical setting. Therapy is mainly symptomatic and focuses on the underlying causes.