摘要
目的探讨胼胝体部分性发育不全的病理学改变及MRI表现,并与胼胝体完全缺如的MRI表现进行比较。资料与方法分析胼胝体部分性发育不全20例的MRI表现,并与同时行MRI检查的8例胼胝体完全缺如的MRI表现进行对照。结果胼胝体部分性发育不全20例中,前部缺如7例,其中1例形成畸形白质团块,后部缺如12例,胼胝体嘴及压部同时缺如1例。合并胼胝体后部周围脂肪瘤4例。合并灰质异位,脑裂畸形各2例,右侧丘脑后部局限性脑软化1例。结论胼胝体部分性发育不全并非少见,MRI能完整显示胼胝体发育不全的程度及形态,特别是对轻度畸形的检出有重要意义。
Objective To explore the transformation in pathology and MRI of partial dysplasia of corpus callosum,and compare with that in MRI of complete dysplasia of corpus callosum. Materials and Methods To analyse the transformation in MRI of partial dysplasia of corpus callosum in 20 cases; and compare with that in MRI of complete dysplasia of corpus callosum in 8 cases which did MRI scanning at the same time. Results In 20 cases of partial dysplasia of corpus callosum, 7 cases show the absent in anterior part, which 1 cases of that showing the forming of conglomeration of abnormalities in white matter,12 cases show the absent in posterior part,1 case shows the absent of rostrum corporis callosi and splenium corporis callosi. 4 cases incorporate the adipoma approaching the posterior part of corpus callosum.2 cases incorporate gray matter heterotopia,and also 2 cases incorporate abnormalities of schizencephaly, 1 cases incorporate local encephalomalacia in posterior part of right thalamencephalon. Conclusion The transformation in MRI of partial dysplasia of corpus callosum isn't singularly. MRI scans can show the conformation of dysplasia of corpus callosum and Amalgamate abnormalities completely, special to display unevident abnormalities.
