The following table or figure may be downloaded to PowerPoint for personal use in teaching and presentations. This feature is available to all subscribers to the journal. You MUST read and follow the guidelines at Request to Reproduce AJR Content if you are distributing or using AJR content beyond academic use (limited distribution, non-revenue producing, or educational purposes). (Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)

Fig. 3B. 24-year-old woman with 6-month history of lower back pain and
evidence of lytic lesion of vertebral body of L4. Axial CT scan after
diskography shows presence of contrast material in lesion with
fluidfluid level (arrow). Presence of air (arrowhead)
on top of lesion is attributable to procedure.