EN
Following a general review of the relatively rare cases of hydat'dosis of the braln a description is given of the authors' case,. operated at the Neurological Clinic in Łódź. In the course of 5 months following this successful operation and by the consequent general well feeling of the patient there developed in the operated area an abscess caused by Staphylococcus aureus infection, which in spite of the respeated surgical treatment and cure with antlbiotics brought about a fatal termination.