PMC4228496_01
(a-c) The mixed hypo- and hyperintensed signals of multiple lesions inside the spinal canal. (d) An intraoperative finding of an arachnoiditis
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F1
The urgent magnetic resonance imaging (MRI) of the thoracolumbar spine disclosed an abnormal sizeable mixed hypo- and hyperintensed lesions on T1 and T2 [Figure 1a-c] at multiple spinal levels. T11 and the intraoperative finding is shown in Figure 1d. The histopathological diagnosis was arachnoiditis. The surgery was uneventful and she was discharged home with regular follow-ups.
(a and b) Patient's diffusion tensor imaging and tractography disclosed marked increased in fibers density and also fractional anisotropy (FA values) at both thalamus when compared with a healthy subject of nearly similar age (c). The mean FA values for right and left thalamus for the patient were 0.450 and 0.457, whereas for the control were 0.391 and 0.395, respectively
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F2
The MRI, inclusive of diffusion tensor imaging (DTI) and tractography of the brain, was done after laminectomy surgery, which revealed no brain lesion but marked increment in fractional anisotropy (FA) and fibers density in both thalamus when compared with a healthy control [Figure 2] and abnormal signal densities in the basal arachnoid spaces.