PMC3841942_01
Sagittal T1 weighted image demonstrating L5-S1 foraminal stenosis (Arrow)
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F1
A 59-year-old female presented with chronic lumbar radiculopathy attributed to L5-S1 foraminal stenosis documented by magnetic resonance imaging (MRI) [Figure 1].
Intravascular flow pattern (arrow) detected by fluoroscopy
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F2
Despite negative aspiration, the spread of contrast under live fluoroscopy was clearly consistent with an intravascular injection [Figure 2].
Appropriate distribution of contrast media along target nerve root and epidural space after needle was repositioned
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F3
There was neither vascular uptake nor intrathecal spread, and aspiration revealed neither blood nor cerebrospinal fluid [Figure 3].