PMC6435870_01
(A) T2-weighted sagittal image of the cervical spinal cord. From C2 to C7, a hyperintensity is shown. (B) T2-weighted axial image of cervical spinal cord. An "inverted V-sign" is shown.
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PMC6435870_01_10.1177_1179573519838277-fig2.jpg
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T2-weighted pictures (Figure 2A and B). These anomalies, combined with the frequent use of laughing gas, indicated a vitamin B12 deficiency-induced myelopathy.