From the case:
Vertebral lymphoma
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There is complete collapse of the L1 vertebral body, with compression of the conus by a soft tissue mass. The discs on either side are preserved.
Case Discussion
The patient went on to have a CT guided biopsy.
Histology
Marked crush/stretching artifact is present, but where morphology is preserved, a diffuse large cell morphology is noted, with a high MIB-1 proliferative index.
L1 vertebral mass biopsy showing diffuse sclerotic large B-cell lymphoma.