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Objective: X-ray , CT, MRI to identify signs of spinal tuberculosis and primary discitis , improve the diagnosis . Materials and Methods : A retrospective collection of pathologically confirmed ( 38 cases ) or by clinical follow-up confirmed ( two cases ) of primary discitis 40 cases (X-Ray 25 cases , CT 28例, MRI 36 cases) and spinal tuberculosis 39 cases ( 37 cases of pathologically confirmed two cases of anti-TB drug therapy improved ) (X line 25 cases , CT 24例, MRI 30 patients), comparing the clinical , laboratory and X-ray , CT, MRI imaging . Results: The primary discitis more common in the elderly, male ones ( 3:1 ) , to a maximum of vertebral involvement lumbar 4-5 ( 15 / 41 ) ; spinal tuberculosis is more common in young adults 50 years of age and older , women ones ( 1:1.6 ) , thoracic and lumbar spine involvement maximum , and more common in the thoracolumbar ( T10 - lumbar vertebrae 3 ) ( 48/ 71 ) ; tuberculosis way longer , up to several years, while the primary discitis more than three months. Both clinical and laboratory examination showed no differences, but this study fever in primary discitis ( 12/ 29 ) than spinal tuberculosis ( 1/12 ) more common. Laboratory tests leukocytosis more seen in primary discitis ( 12/ 26 ) , while in 33 cases of spinal tuberculosis investigation only two cases of leukocyte mildly elevated . X -ray and CT signs of support for primary discitis is osteophyte formation , supporting signs of spinal tuberculosis is obviously deformed vertebra or wedging of vertebral fracture , large paravertebral abscess formation . Radiograph shows bony endplate sclerosis support primary discitis , and CT showed no difference between the endplate sclerosis . MR diagnosis of spinal tuberculosis two main signs are as follows: thoracic involvement, ligament spread , multiple vertebral involvement , paraspinal abscess size. The study also analyzes changes in T2 signal disc disease , vertebral T2 high signal involving both meaningful in identifying the scope of the vertebral body . Enhanced MRI affected vertebrae , intervertebral discs and paravertebral soft tissue in primary discitis mostly diffuse homogeneous or inhomogeneous enhancement , and spinal tuberculosis cold abscess formation and showed ring enhancement . Conclusion : X line , CT, MR can identify most of the primary discitis with spinal tuberculosis . Enhanced MRI scan can help identify ways to strengthen both.
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