Takamatsu N, Yamanouchi H, Yamada H
Department of Neurology, Radiology, Tokyo Metropolitan Geriatric Hospital.
Rinsho Shinkeigaku. 1990 Aug;30(8):898-900.
It has been reported that most of pure motor monoparesis were induced by the superficial mass lesions in the cerebral hemisphere. However, pure motor monoparesis due to lacune is rare. We reported a 81 year-old woman of pure motor monoparesis caused by the lacunar infarction in the parasagittal subcortical white matter. That lesion could not be detected by CT scan performed at onset, and 18 days later after the stroke, but was detected by MRI performed 5 days after the onset. The coronal section of MRI showed the stick-like shaped small infarction in the white matter, which runs along the corticospinal tract, just under the precentral gyrus. The coronal section of MRI is useful for the demonstration of the anatomical localization of lacune.
据报道，大多数纯运动性单瘫是由大脑半球的浅表肿块性病变引起的。然而，由腔隙性梗死引起的纯运动性单瘫很少见。我们报告了一名81岁女性，因矢状旁皮质下白质腔隙性梗死导致纯运动性单瘫。发病时及卒中后18天进行的CT扫描均未发现该病变，但发病后5天进行的MRI检查发现了该病变。MRI冠状位显示白质内呈棒状的小梗死灶，沿皮质脊髓束走行，恰位于中央前回下方。MRI冠状位有助于显示腔隙性梗死的解剖定位。
