by histopathologic studies of 14 vertebral columns with vertebral metastases of various malignant tumors and 616 disc specimens , the authors found three pathways for an intravertebral tumor to invade into the adjacent disc : 1 ) direct infiltration from the rim of the vertebral body not covered by the cartilagenous plate , 2 ) infiltration from the side of the vertebral body close to the vertebral corner , through the subspace beneath the longitudinal ligament , and 3 ) hematogenous invasion via small vessels in the subspace beneath the longitudinal ligament .
C0037949
vertebral columns
C0684550
vertebral