Clinical features of syphilitic myelitis with longitudinally extensive myelopathy on spinal magnetic resonance imaging

Figure 2 Spinal cord magnetic resonance imaging showed abnormal longitudinally extensive T2 weighted hyperintensities involving the posterior columns from C7 through T6, with "flip-flop sign" on cervical spinal magnetic resonance imaging. Focal enhancement was observed in the dorsal aspect of the thoracic cord on T1- weighted gadolinium-enhanced images at T3-T4 level.