The lumbosacral spine is the most common location for these cysts, with a prevalence range from 1.5% to 2.1% on lumbosacral MRI images . Symptomatic cases are rare, constituting less than 1% . It is predominant in females, by up to 84% as reported in one study . Histologically, Tarlov cysts are characterized by the presence of nerve fibers within the fibrous tissue of the cyst wall . This is important since an intraoperative frozen section may reveal nerve elements; however, this is differentiated from a normal nerve because of the absence of positive response to electrical stimulation.