Table 3. Summary of the Clinical, Cerebrospinal Fluid, and MRI Characteristics of Myelitis With MOG-IgG, AQP4-IgG, and MS.

Characteristics	MOG-IgG	AQP4-IgG	MS
Clinical/demographic
Female	Frequent	Very frequent	Frequent
Children	Frequent	Infrequent	Infrequent
ADEM phenotype	Frequent	Infrequent	Rare
Severe myelitis (wheelchair dependent)	Frequent	Frequent	Rare
Excellent recovery	Frequent	Infrequent	Very frequent
CSF
White blood cell >50/μL	Frequent	Infrequent	Rare
Positive oligoclonal bands	Infrequent	Infrequent	Very frequent
MRI spine
Longitudinally extensive T2 lesion(s)	Frequent	Very frequent	Rare
Short T2 lesion(s)	Frequent	Infrequent	Very frequent
Gray matter restricted (H sign/sagittal line)	Frequent	Infrequent	Rare
Axial T2 central	Very frequent	Very frequent	Rare
Axial peripheral (dorsal/lateral column)	Rare	Rare	Very frequent
Multiple lesions	Frequent	Rare	Frequent
Enhancement of myelitis lesion(s)	Infrequent	Frequent	Frequent
MRI head
Inferior temporal periventricular lesion(s)	Rare	Rare	Frequent
Deep gray matter lesion(s)	Frequent	Infrequent	Rare
Gadolinium enhancing lesions	Infrequent	Infrequent	Frequent

Abbreviations: ADEM, acute disseminated encephalomyelitis; AQP4, aquaporin-4; CSF, cerebrospinal fluid; MOG, myelin oligodendrocyte glycoprotein; MRI, magnetic resonance imaging; MS, multiple sclerosis.

SI conversion factor: To convert white blood cell count to ×10⁹/L, multiply by 0.001.