PMC5629839_01
The standing lateral dynamic x-rays showed grade 1 listhesis at L4-L5 level(a and b). TLIF was done at an L4-L5 level with percutaneous posterior screw fixation (c and d)
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F1
Standing lateral dynamic X-rays showed a grade 1 listhesis at the L4-L5 level [Figure 1a and b]. Postoperative X-rays documented the TLIF at L4-L5 [Figure 1c and d].
Preoperative MRI revealed an intradural extramedullary mass lesion at the level of L5-S1 on right postero-lateral aspect. The lesion was hyperintense in T1WI (a and d), and hypointense on T2WI (b and e) with hyperintense to the cord on STIR sequence (c and f)
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F2
Magnetic resonance imaging (MRI) documented a right-sided, posterolateral intradural/extramedullary lesion at the L5-S1 level [Figure 2].
Intraoperative photograph of chronic SDH: blood clots within semi-transparent neo-membrane
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F3
When the dura was opened longitudinally, it revealed a dark blood clot within a semi-transparent neomembrane [Figure 3].
Radiological follow up with T2WI showed no residual pathology and decompression of spinal cord
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F4
Radiological MR follow up [Figure 4] revealed no residual pathology and adequate decompression.
Histopathological section of chronic subdural hematoma
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F5
These findings confirmed the diagnosis of a chronic SDH [Figure 5].