“…4,8 DST has been reported to occur in 11.34% of patients with spinal dysraphism (37 of 320 cases), while spinal dysraphism occurs in 60% to 65% of patients with DST. 9,10 The frequency of the site of DSTs has been shown as cervical 1%, thoracic 10%, lumbar 41%, lumbosacral 35%, and sacrococcygeal 13%, and that in 6% to 7% of cases, the tract reportedly terminates dorsal to the spinal elements, while in 10% to 20%, DSTs terminates in the extradural space, and in 58% to 60% dermal sinuses terminate in the intradural space.…”