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Table 3:

Orbit and spine MR imaging features at presentation for serum antibody-positive MOGAD

Orbital Involvementn =31Spine Involvementn = 11
Unilateral6/31 (19.4)Long segment4/11 (36.4)
Bilateral25/31 (80.6)Short segment6/11 (54.5)
Segments involvedCauda equina enhancement1/11 (9.1)
 Orbital24/31 (77.4)Focality
 Intracanalicular20/31 (64.5) Unifocal3/11 (27.3)
 Prechiasmatic17/31 (54.8) Multifocal8/11 (72.7)
 Optic chiasm5/31 (16.1)Location
 Optic tract4/31 (12.9) Cervical8/11 (72.7)
Optic nerve enhancementa25/29 (86.2) Thoracic6/11 (54.5)
Perineural enhancementb17/25 (68) Conus5/11 (45.4)
Optic nerve low diffusivityc10/15 (66.7) Cauda equina1/11 (9)
Pattern
 Central6/11 (54.5)
 Peripheral4/11 (36.4)
 Entire cross-section3/11 (27.3)
 Central gray only4/11 (36.4)
Enhancement
 None7/11 (63.6)
 Intramedullary3/11 (27.3)
 Leptomeningeal1/11 (9)
Cord expansion5/11 (45.4)
  • aUnknown in 2 patients due to absence of contrast.

  • bUnknown in 6 patients due to absence of contrast and/or fat saturation.

  • cUnknown in 16 patients due to missing DWI sequence.