Intervertebral disc space

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The intervertebral disc space is typically defined on an X-ray photograph as the space between adjacent vertebrae. In healthy patients, this corresponds to the size of the intervertebral disc. The size of the space can be altered in pathological conditions such as discitis (infection of the intervertebral disc).

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Radiographic Anatomy of the Skeleton by Michael L. Richardson, M.D., depicting healthy disk spaces. Learning Radiography X-ray photograph of a patient with discitis.