Khan S, Yaqub B A, Poser C M, al Deeb S M, Bohlega S
Department of Neurosciences, Riyadh Military Hospital, Saudi Arabia.
J Neurol Neurosurg Psychiatry. 1995 Apr;58(4):467-70. doi: 10.1136/jnnp.58.4.467.
Two cases of alternating hemiparesis are reported, one in a black Sudanese woman, the other in a Saudi man, who had two episodes of alternating hemiparesis separated in time by six and three years respectively. Based on the typical appearance of the MRI and the results of brain biopsy, the diagnosis of multiphasic disseminated encephalomyelitis was made rather than that of multiple sclerosis. This entity is also differentiated from recurrent disseminated encephalomyelitis, where the relapses are symptomatically stereotyped although the appearance of the MRI is similar and in which new lesions do not occur. Because of the unusual appearance of these MRI lesions, brain biopsy is often performed but recognising their relevance should obviate that need.
报告了两例交替性偏瘫病例，一例为苏丹黑人女性，另一例为沙特男性，他们分别有两次交替性偏瘫发作，发作时间间隔分别为六年和三年。根据MRI的典型表现和脑活检结果，诊断为多相性播散性脑脊髓炎而非多发性硬化症。该实体也与复发性播散性脑脊髓炎相鉴别，复发性播散性脑脊髓炎的复发在症状上是刻板的，尽管MRI表现相似且不会出现新的病变。由于这些MRI病变的外观不寻常，通常会进行脑活检，但认识到它们的相关性应该可以避免这种需要。
