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Discographic patterns in a 43-year-old woman who had low back pain with radiation to the left calf. (a) Anteroposterior and (b) lateral radiographic projections show a normal bilocular L2/3 disc. There is small posteroinferior tear of the L3/4 disc that was asymptomatic. The L4/5 disc is decreased in height, and had extensive annular disruption and posterior protrusion. The L4/5 disc was also symptomatic.
