Tapeworm is a parasite that usually lives in our intestine. Here there’s evidence of its capacity of migrating in humans’ brain.
Below I publish the link of the whole study conducted in Uk by several authors, who found this parasite in migrating cerebral lesions of a 50 years old man. Admitted to hospital with several disorders (headaches, altered smell, memory flashbacks and memory impairment, complex partial and tonic-clonic seizures and progressive right-sided pain), MDs found, by biopsy, 1 cm long larval worm alive in his brain.
A very interesting study