[Chronic lymphocytic meningitis with polytopic involvement of the nervous system (after tick bite?)].

After an introductory description of the terminology, the individual experiences of 65 patients with chronic lymphocytic radicular myelo-meningitis after tick bite are reported with reference to the literature. The finding of the cerebrospinal fluid in the lymphoplasmocytic meningitis together with radicular and regional pains, and a one-or two-sided peripheral facial nerve paresis represents the nucleus syndrome of the illness, which usually progresses as meningopolyneuritis. The pathogen, probably a virus, could not yet be isolated. The treatment is purely symptomatical with corticosteroids and antibiotics. Quoad vitam, the prognosis is invariably favourable, residues are frequent.