[Chronic meningitis].

The paper presents the past knowledge of the etiology of chronic meningeal syndrome. The causes are divided into those of infective and those of noninfective etiology. Basic recommendations for general diagnostic approach, laboratory, clinical and radiological follow up of the patients have been given. A wide spectrum of differential-diagnostic possibilities has been pointed out, especially in relation to chronic systemic diseases. Characteristic syndromes of chronic meningitis have been separated and concisely described.