Guilleux M H, Steiner R E, Young I R
AJNR Am J Neuroradiol. 1986 Nov-Dec;7(6):1033-5.
The MR imaging appearance of progressive multifocal leukoencephalopathy is described in four cases that were confirmed by brain biopsy. Characteristic aspects are long T1 and long T2 lesions limited to white matter. At first the lesions are round or oval, then confluent and large. There is no mass effect. The involvement is most often asymmetric and distant from the periventricular region. The differential diagnosis includes other diseases affecting white matter: demyelination, infarction, infection, and tumors.
通过脑活检确诊的4例进行性多灶性白质脑病的磁共振成像表现被描述。其特征性表现为局限于白质的长T1和长T2病变。起初病变为圆形或椭圆形，随后融合且范围增大。无占位效应。病变最常呈不对称分布，且远离脑室周围区域。鉴别诊断包括其他影响白质的疾病：脱髓鞘、梗死、感染和肿瘤。
