MRI
Sagittal T1
Axial T2
Sagittal T2
Sagittal T2 fat sat
Axial T2
The spinal cord shows longitudinal hyperintensity and swelling of the thoracic segment on sagittal T2-weighted images.
On axial T2-weighted, the dorsal cord exhibits signal hyperintensity in the lateral columns.
This finding is highly specific for HTLV-1-associated myelopathy.