[Polyradiculoneuritis in a developmental flare-up of Behçet's disease].

A patient with Behçet's disease developed a polyradiculitis that was mainly motor. It was associated with an acute episode of mucocutaneous, articular and inflammatory symptoms and the neurological disorders regressed in a few months. A possible cause effect relationship is considered. Peripheral nerve lesions are rare in Behçet's disease. Only a few cases of polyneuritis radiculitis and mononeuritis multiplex have been reported.