Ligamentum flavum hematoma due to stretching exercise: a case report and review of literature
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Fig. 1
Sagittal and axial T1-weighted (A and B), T2-weighted (C and D) and gadolinium-enhanced T2-weighted (E) magnetic resonance images showing an intrathecal cyst-like lesion with adjacent retrospinal soft tissue enhancement at L4-L5 level with severe thecal sac compression and severe encroachment of the bilateral neural foramina.
Fig. 2
Intraoperative findings showed ligamentum flavum (A, arrow). After dissecting ligamentum flavum, dark liquefied material (B, arrow) was found, and a capsule lesion was identified (C, arrow). Decompression and exposure of dura (D, arrow) was performed.
Fig. 3
Sagittal (A) and axial (B) T2-weighted images of the same area 5 months later showing complete resolution after the patient underwent L4 through L5 laminectomies and removal of intraspinal lesion, which was proven to be a old hemorrhage in fibrous tissue.
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