PMC7719747_01
Magnetic resonance imaging (MRI) of cervical to thoracic spinal cord. (A) Sagittal T2 MRI showing longitudinally extensive transverse myelitis (arrow) from the lower part of the medulla oblongata to C5 with marked edema. (B) Gadolinium contrast MRI of cervical to thoracic spinal cord showing mild enhancement (arrow), which represents the active lesions of myelitis. (C) Axial gadolinium contrast MRI showing active radiculopathy of the left side (arrow).
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F1
Spinal magnetic resonance imaging (MRI) revealed LETM, extending from the lower part of the medulla oblongata to C5, with marked edema and moderate gadolinium enhancement (Figures 1A,B). Abnormal gadolinium enhancement of the left spinal posterior root was also observed (Figure 1C).
Timeline of patient's disease. Rt, right; VZV, varicella-zoster virus; n.d., not determined; AQP4-IgG, aquaporin-4 immunoglobulin-G;  detected retrospectively.
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F2
Thus, we tested the serum obtained during first admission using cell-based assay (CBA), and true enough, AQP4-IgG was detected (Figure 2).