[Echinococci of the spinal canal]

The authors present a 51-year-old patient who was admitted to the neurosurgical department of the hospital because of paraparesis and vegetative disturbances. Myelography showed a complete lumbosacral stop. During surgery, large masses of Echinococcal cysts were removed from the extradural space. 20 months after the intervention, another operation became necessary because of a relapse. The fact is stressed that in spinal hydatidosis late relapses must be expected.