[Coenurosis in a sheep in Santa Catarina State, Brazil].

Coenurus cerebralis infection is commonly occurring parasite in small ruminants worldwide. A ewe showed head inclination to the left, equilibrium loss, impetuous movement to the high, falling in left lateral recumbency and recovering movement later. Seven days later, the animal remained in permanent lateral recumbency and nystagmus. Euthanasia was carried out and a routine necropsy examination was performed. A large volume was found on the right side of the cerebellum due to a cystic cavity, with approximately 1.5 cm of diameter and it was identified as Coenurus cerebralis.