What are the causes of spinal cord compression, according to location?
Epidural lesions: epidural abscess or phlegmon, epidural hematoma and metastases. Dural lesions: spinal meningioma and spinal arachnoid cyst. Intradural lesions: nerve sheath tumor (spinal schwannoma or neurofibroma).
There are two extradural soft tissue masses, as follows :
- one seen at the level D3-D4 causing severe compression on the right posterolateral spinal cord, displacing the spinal cord anterolaterally to the left side, protruding through the right nerve foramina
- the other one is seen at the level D8 causing compression on the right posterolateral spinal cord and displacing the spinal cord anterolaterally to the left side, and protruding through the right nerve foramina
There are diffuse osseous lesions in the spine, that appear low intense on T1-weighted images and hyperintense on T2 weighted images, consistent with osseous metastases.
The one which is seen at the level of D11 is associated with surrounding left paravertebral and extradural soft tissue components indenting the anterior lateral aspect of the spinal cord.
There is a small intradural soft tissue metastatic nodule in the thecal sac posteriorly at the level of the D12 vertebral body.
The urinary bladder is overfilled, secondary to urinary retention.