LONG SEGMENT >3 vertebral segments

INDEX

DURAL AV FISTULA

                                                                                

                                                                                                                         Short Segment Myelopathy                       MCQs on this topic   
JIGSAW PUZZLE
LOCATION
 
SAGITTAL T2
POST CONTRAST
Other features

Commonly,  thoracic cord
extending to the conus1.
Single lesion2.

 

Poorly defined
T2 hyperintensity and cord enlargement,
which represents spinal cord oedema1.

 

Patchy, missing piece sign: an area of absent
enhancement within a long segment of
homogeneous enhancement appearing as
if the enhancement has a missing piece.

Enhancing large veins may be present.
40 % have no enhancement2.

Dilated perimedullary vessels manifest as multiple serpentine
flow voids along the  dorsal surface of the spinal cord 2.
 
 

 

 

 

 

 

 


AXIAL T2
 
POST CONTRAST
 

                                                                                     Central hyperintensity2
 
    Central enhancement2
 

 

 

References

1. Lee MJ, Aronberg R, Manganaro MS, Ibrahim M, Parmar HA. Diagnostic approach to intrinsic abnormality of spinal cord signal intensity. Radiographics 2019; 39: 1824–39.

2. Lopez Chiriboga S, Flanagan EP. Myelitis and Other Autoimmune Myelopathies. Contin Lifelong Learn Neurol 2021; 27: 62–92.

3. Mustafa R, Passe TJ, Lopez-Chiriboga AS, et al. Utility of MRI Enhancement Pattern in Myelopathies With Longitudinally Extensive T2 Lesions. Neurol Clin Pract 2021; 11: E601–11.