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T2-weighted axial images in different patients with NMO. (a)–(d) Images show centrally-located (in (b)) and both centrally- and peripherally-located lesions (in (a), (c), (d)) and lesions occupy about one-half or more than one-half of the cord area (in (a), (c) and (d)). (e)–(h) Images demonstrate punctate (in (e), (f), (g) or larger (in (h)) ‘bright spotty lesions’.
NMO: neuromyelitis optica.
