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Multiple complete ring-shaped enhanced MRI lesions in acute disseminated encephalomyelitis
Kun Eng Lim1, Yuan Yu Hsu, Wen Ching Hsu
1Department of Radiology, Chang Gung Memorial Hospital, 5 Fu Hsin Road, Kwei Hsan Hsiang, Taoyuan Hsien, Taipei, Taiwan. lkethm@adm.cgmh.tw
Abstract:
Acute disseminated encephalomyelitis (ADEM) lesions may or may not enhance with contrast material on contrast T1-weighted magnetic resonance images (T1WI). Enhancing ADEM lesions may show varying patterns of contrast enhancement, which include nodular, diffuse nodular, amorphous, gyral, spotty and incomplete ring-like. Multiple, complete ring-shaped enhanced lesions on contrast T1WI is a rare finding in ADEM. We report such a magnetic resonance imaging (MRI) finding in a 36-year-old female patient with this disease.
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