Objective. Echinococcosis is a rather seldom detected parasitic disease affecting the CNS in 2%o of cases only. Diagnostic difficulties occur if presentations in neuroimaging assessment are atypical, as in this disease serological tests can be negative for a long time since the onset of clinical symptoms.
Cases. Two patients with echinococcosis are described: a 53-year-old man with an isolated cerebral form of echinococcosis and an atypical brain MRI scan showing disseminated focal lesions, and a woman aged 18, with an ophtalmic form of the disease and disseminated neurological signs.
Commentary. Echinococcosis continues to be seen in Poland. Isolated intracerebral forms of this disease are very rare. The diagnosis should be based on neuroimaging findings, as well as serological test results and cerebrospinalfluid analysis. Oral treatment is an alternative method in non-operative cases.