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Figure 1. (a) December 1993: post-operative contrast-enhanced axial T1 weighted lumbar MRI (1.5 Tesla) at the L4L5 level showing epidural fibrosis in the left lateral recess and lateral spinal canal region, but no disc herniation (arrow). (b) May 1998: contrast-enhanced CT scan examination at L4L5 level showing epidural fibrosis in the left lateral recess. (c) November 2001: axial T1 weighted contrast-enhanced lumbar MRI (1.5 Tesla), showing the reduction of the left epidural fibrosis after 3.5 years of treatment with combined pentoxifyllinetocopherol (arrow).
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