Figure 2

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Nomenclature and Classification of Lumbar Disc Pathology

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(Figure 2)

Schematic sagittal anatomical sections showing the differentiating features of an anular tear (radial tear in this case) and a disc herniation. The term "tear" is used to refer to a localized radial, concentric, or horizontal disruption of the anulus without associated displacement of disc material beyond the limits of the intervertebral disc space. Nuclear material is shown in black, and the anulus (internal and external) corresponds to the white portion of the intervertebral space. The same convention is used in Figures 3, 12, 13, and 14. (Adapted from Milette PC. The proper terminology for reporting lumbar intervertebral disk disorders. AJNR Am J Neurorad 1997;18:1859-66; with permission.)

Introduction

Preface	Introduction	Recommendations	Discussion (part 1)
Discussion (part 2)	Glossary	References	Appendix