Periventricular Lesions Help Differentiate Neuromyelitis Optica Spectrum Disorders from Multiple Sclerosis
Figure 3
Evaluation of FLAIR sagittal images. Patients with NMO are shown in (a): Dawson’s fingers are absent. In contrast, most MS patients (b) demonstrate elongated, flame-shaped lesions oriented along the course of deep medullary veins, compatible with perivenous inflammation.
