PMC5569401_01
An extradural more right -sided mass located dorsal to the spinal cord, extending from C3 through the mid-T3 vertebral level, resulting in marked spinal cord compression and edema/myelomalacia (high intrinsic cord signal). It was hyperintense on T1-weighted images (a), and heterogeneously hyperintense on T2-weighted images (b)
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F1
It was hyperintense on T1 [Figure 1a] and heterogeneously hyperintense on T2-weighted studies [Figure 1b]. It was more right-sided in location and was accompanied by an increased cord signal from C3 all the way down to the T2 level, which was suggestive of severe cord edema/infarction [Figure 1b].
Following multilevel C3-T1 laminectomy with posterior instrumentation, the intraoperative photographs revealed a large epidural hematoma (a and b)
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F2
Below the ligamentum flavum, large hard, dark clots were found, but no discrete bleeding points or abnormal vessels could be identified [Figure 2a and b].