Presentation
Low back pain, worsening.
Patient Data
No evidence of collapse or luxation.
Mass centered on right T10 pedicle, involving the lamina and spinous process, comprising numerous small cysts with internal fluid-fluid levels and peripheral enhancement. Most compatible with aneurysmal bone cyst. The lesion exerts pressure on the conus, which is displaced leftward and narrowed. Above and below the lesion, the canal is wide, without any other lesion.
Post-operative MRI several months later:
Status post ABC excision via posterior access, with laminectomy at levels T8-T11, and insertion of fixation screws into said vertebrae.
No evidence of collapse or luxation.
Abnormal heterogeneous signal in the surgical bed in the T10 vertebra, probably representing post-embolization and postsurgical changes. No clear evidence of relapse.
Case Discussion
Had been complaining of low back pain for over a month, which had worsened in the past few days.
MRI spine showed an aneurysmal bone cyst compressing the spinal cord.
Pathology concurred with aneurysmal bone cyst and no other underlying primary tumor.
Underwent embolization and excision of the lesion via posterior laminectomy.
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