STATISTICAL STUDIES indicate that the incidence of cerebral cysticercosis is high in Latin America. In Mexico, Robles1found that of a series of 100 cases of cerebral tumor 25 were of cysticercosis. Arana and Asenjo2, in Chile, found 25 cases of cysticercosis in a series of 202 cases of intracranial tumor. It is the purpose of this paper to summarize the clinical experience of my colleagues and me with cerebral cysticercosis in Mexico. During five years of neurosurgical practice 17 cases were collected. The diagnosis was confirmed by operation or autopsy in 10 of the cases, and in the others it was made on clinical, roentgenologic and laboratory evidence. The literature has been extensively reviewed by Trelles and Lazarte3, Lopez Albo4and Dixon and Hargreaves5. The frequency of cerebral cysticercosis will undoubtedly increase in Great Britain and the United States in the years following the