The involvement of the central nervous system in cysticercosis was demonstrate as an incidental finding in a frequence of 0,3% in 4000 autopsied cases. Most of the 12 patients came from rural areas of the State of Bahia. The low frequence compared to other sites reported in Brasil shows that the neurcysticercosis does not represent an important problem in Bahia. The host tissue response observed was represented by a chronic fibrosing inflamatory type of reaction. This study points out the importance of the methenamine silver stain (Grocott) in the identification of the degenerated embryo inside the fibrous and/or calcified lesions.