Spinal subdural metastasis. A case report

Area of Science:

• Neurology
• Oncology
• Radiology

Background:

• Spinal tumors are uncommon, with subdural metastasis being particularly rare.
• Metastatic tumors typically spread to the epidural space rather than the subdural space.

Observation:

• A case of metastasis to the thoracic spinal subdural space is reported.
• Metrizamide myelography demonstrated narrowing of the upper thoracic subarachnoid space.

Findings:

• Tumors within the spinal subdural space are exceptionally rare, with limited documented cases.
• The myelographic findings were not specific, as epidural metastasis can present with a similar imaging appearance.

Implications:

• This case highlights the importance of considering rare metastatic locations in spinal imaging.
• Further research is needed to differentiate myelographic findings of subdural versus epidural spinal metastases.