Increased morbidity of viral tick borne encephalitis since the 90's indicates growing risk of Rother tick borne diseases, including neuroborreliosis. Analysis of demographical, epidemiological and clinical data of patients hospitalised in Departament on Infectious Diseases and Neuroinfections in years 2000-2005 revealed that among patients with Lyme disease 13% were with neuroborreliosis with broad spectrum of neurologic symptoms as cranial nerves paresis (mainly n.VII), as well concentration and memory disturbances, and general symptoms. Some of patiets did not recall tick bite and did not present earlier borreliosis symptoms. Imaging only supports recognitio.