[Systemic sarcoidosis revealed by acute ataxic sensory polyradiculoneuropathy].

We present the case of a 35-year-old man who developed bilateral uveitis and acute ataxic sensorial polyradiculoneuropathy with sphincter dysfunction. The patient had multiple mediastinal adenopathies. Pathology examination led to the diagnosis of sarcoidosis. The patient improved partially spontaneously and totally after oral corticosteroid therapy. This case illustrates an unusual presentation of acute polyradiculoneuritis which is usually a predominantly motor disorder in sarcoidosis. Sensorial and ataxic neuropathy is uncommon. The course is more chronic and progressive.