目的探讨MRI在儿童脱髓鞘病变中的应用价值与意义。
Objective To explore the value and significance of MRI in children with demyelinating diseases.
累及胼胝体的病变主要的鉴别诊断包括肿瘤如淋巴瘤和胶质瘤，脱髓鞘病变。
The major differential for lesions that involve the corpus callosum includes masses such as lymphoma and glioblastoma, and demyelinating lesions.
在我们的病例中，周边的弥散受限的薄壁环状影可能代表脱髓鞘病变的活动性边缘。
In our case, the thin peripheral rim of restricted diffusion may represent an active edge of demyelination.
其它改变，伴桥脑梗塞5例，小脑梗塞3例，大脑半球及底节梗塞8例，额顶叶脑白质脱髓鞘病变6例。
Others, Pons infarction in 5 cases, cerebellar infarction in 3 cases, cerebral hemisphere or base ganglion infarction in 8 cases, and leukoencephalopathy in 6 cases.
PMD中不会有异常的强化，相反其他的脱髓鞘病变如肾上腺脑白质营养不良症其外周活动性的脱髓鞘病变可以强化。
Abnormal enhancement is not seen in PMD as opposed to some demyelinating disorders such as adrenal leukodystrophy in which enhancement is seen at the periphery of the active demyelination.
本例的诊断是肿瘤样脱髓鞘病变，这被认为是一种孤立的脱髓鞘病变，大小超过2cm，其特征类似于肿瘤样病变。
The diagnosis in this case was tumefactive demyelination, which may be thought of as a solitary demyelinating lesion measuring greater than 2 cm and with characteristics that mimic neoplasm.
小动脉病变导致的白质纤维脱髓鞘是发生白质疏松的主要原因之一。
Demyelination of white matter fibers caused by arteriopathy is one of the major causes of leukoaraiosis.
小动脉病变导致的白质纤维脱髓鞘是发生白质疏松的主要原因之一。
Demyelination of white matter fibers caused by arteriopathy is one of the major causes of leukoaraiosis.
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