PMC4790154_01
Shows preoperative and postoperative axial MR images of patient
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F1
It was hyperintense on T2-weighted images [Figures 1 and 2].
Shows preoperative and postoperative sagittal MR images of patient
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F2
It was hyperintense on T2-weighted images [Figures 1 and 2].
The operative view of LFH under microscope
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F3
Figure 3 shows the operative view of LFH under the microscope.
Histological examination revealed hemorrhage of the ligamentum flavum. The overall histological diagnosis was a hematoma in the degenerative LF. The hematoma is made up of poorly vascularized, dense tissue with elastic fibers and collagen
JCVJS-7-7-g004.jpg
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F4
Histological examination of the LF revealed a consolidated hematoma with granulomatous change, degenerative fibrous tissue surrounded by intact fibrous tissue [Figure 4], and accumulation of hemosiderin-laden macrophages.