different types of spinal cysts
Tarlov and other spinal cysts. There are several kinds of cysts that occur in and around the spine. The most common and the least understood occur in the sacrum or tail bone. These are commonly called Tarlov cysts after the neurosurgeon who described them over 70 years ago. These are the most common of all the sacral cysts.
1 Dermoid Cysts, though rarely found in the brain, are usually located at the lower back portion of the brain (the posterior fossa) in older adults and in the lower end of the spine in older children and young adults.  Epidermoid Cysts tend to be located in the area where the top part of the brain meets the brain stem.