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2 cases of diastematomyelia deformity

Lesions involving the range. Conclusion of the lumbar spine plain film can only serve as the primary routine screening patients, CT scan combined with CTM may make to the comprehensive and accurate diagnosis of disease. [Key words diastematomyelia; separated; CT scan [Key Words】 R744 [Document code】 A [Article ID】 1673-9701 (2008) 04-127-01 diastematomyelia is a rare congenital abnormalities. Two cases were confirmed by surgery, are reported below. Admitted to our hospital in the last two years to make a comprehensive evaluation of the CTM can be exempted from invasive and x ray myelography ll-51. 1 case reported cases of I men, aged 14, complained of lower back tumor fourteen years, low back pain in recent years there associated with numbness of both lower extremities, increase two weeks to hospital: patients 2 months after birth, his mother found in patients with back, there was a tumor the size of soybean was not aware that tumor growth increases with age. Examination: 2,3 at the lumbar spine in a backward prominent bony protuberances, and bend to the left,[link widoczny dla zalogowanych], lumbar 2,3 prominences hard, smooth surface, no movement, no local tenderness. 5 shows a waist of about 20mm × 25mm hair bundle. Sensory and motor normal lower limbs. Plain film lumbar spine: lumbar spinal canal shows a 2,3-bone separation, absence of lumbar spinous process 1,4,[link widoczny dla zalogowanych],5 do not merge with the lamina. Lumbar CT showed: the central issue of the lamina from the waist 2 3 lumbar vertebral body beyond the visible edge of the left rear on a diagonal line about 9mm × 25mm bone separating the dural sac is divided into two halves, the left slightly smaller, slightly larger than the right , within which there is also a 8mm × 10ram oval-shaped fat-density shadow, side clear. CTM said: separate paragraphs are mutually unintelligible, each contrast agent into its upper and lower segments and merging with the contrast agent (see Figure 1 to 3). Imaging diagnosis: lumbar diastematomyelia combined lipoma, hidden spina bifida. Example 2 male, 27 years old,[link widoczny dla zalogowanych], complained of low back pain and left lower limb radiation of more than six months. Examination: the L4 spinous process tenderness, local skin pigmentation can be seen. Left leg straight leg raising test (+). Plain film lumbar spine: lumbar scoliosis, lumbar disc space narrowing 4,5, vertebral facet joints show unclear. Lumbar CT showed: 4,5 lumbar spinal canal expansion, the central issue of the lamina from the waist 4 separate ends of a bone on the posterior edge of L5, the dural sac into two, the lower and combined ( Figure 4,5). The ridge line is the maximum diameter of 8mm × 21mm, swollen shape of the dural sac. Hypertrophy of L4 spinous process was fork-like, not even the L5 lamina. Imaging diagnosis: lumbar diastematomyelia recessive spina bifida combined. 2 to discuss the term in 1837 diastematomyelia South Olliver first use, refers to the spinal cord or cauda equina segmental sagittal split fracture or a bone-free, fibrous and cartilaginous every thorn, spine attributable to the recessive dysraphism. The disease is generally believed that embryonic neural tube closure insufficiency. Diastematomyelia common in women, 20% occurred in the thoracic spine, lumbar 62%, 18% thoracic, 50% of the patients had clinical symptoms,[link widoczny dla zalogowanych], manifested as lower extremity weakness, feeling diminish or disappear, unsteady gait, anti- various foot deformities. Most patients are back hair bundle spinous process at the skin, pigment spots, and subcutaneous lipoma and so on. CT scan can clearly show the bony diastematomyelia separated, they can still distinguish fibrous or cartilaginous delimited. CTM is superior to CT in this scan, MRI and CT scan can be combined with the disease 5 Figure 1 Figure 1 Figure 3 Figure 3 Example 1: From the central lamina of lumbar 2 Figure 2 Figure 4 issue limited to the L3 vertebral body visible on the edge of a left posterior oblique bone is divided into two halves separated by the dural sac. Within which there is also a shadow oval fat density. Edge clear. CTM said: separate paragraphs are mutually unintelligible. Contrast agents have access to, the upper and lower section of contrast agent and confluence of Figure 4,5 Example 2: Since the central issue of the L4 lamina separated ends of a bone on the posterior edge of L5. The dural sac in two [
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