PDF(Pubmed)
Abstract：
UNASSIGNED: Twig-like middle cerebral artery (T-MCA) is a rare vascular abnormality characterized by the replacement of the M1 segment of the middle cerebral artery (MCA) with a plexiform arterial network of small vessels. T-MCA is generally regarded as an embryological persistence. Conversely, T-MCA may also be a secondary sequela but no reports of cases of de novo formation exist. Here, we report the first case describing possible de novo T-MCA formation.
UNASSIGNED: A 41-year-old woman was referred to our hospital from a nearby clinic because of transient left hemiparesis. Magnetic resonance (MR) imaging revealed mild stenosis of the bilateral MCAs. The patient then underwent MR imaging follow-ups once a year. MR imaging at the age of 53 showed a right M1 occlusion. Cerebral angiography revealed a right M1 occlusion and formation of a plexiform network consistent with the occlusion site, leading to the diagnosis of de novo T-MCA.
UNASSIGNED: This is the first case report describing possible de novo T-MCA formation. Although a detailed laboratory examination did not confirm the etiology, autoimmune disease was suspected to have precipitated this vascular lesion.
UNASSIGNED: A 41-year-old woman was referred to our hospital from a nearby clinic because of transient left hemiparesis. Magnetic resonance (MR) imaging revealed mild stenosis of the bilateral MCAs. The patient then underwent MR imaging follow-ups once a year. MR imaging at the age of 53 showed a right M1 occlusion. Cerebral angiography revealed a right M1 occlusion and formation of a plexiform network consistent with the occlusion site, leading to the diagnosis of de novo T-MCA.
UNASSIGNED: This is the first case report describing possible de novo T-MCA formation. Although a detailed laboratory examination did not confirm the etiology, autoimmune disease was suspected to have precipitated this vascular lesion.
摘要：
■Twig样大脑中动脉（T-MCA）是一种罕见的血管异常，其特征是大脑中动脉（MCA）的M1段被小血管的丛状动脉网络所取代。T-MCA通常被认为是胚胎学的持久性。相反，T-MCA也可能是继发性后遗症，但没有关于从头形成病例的报道。这里,我们报告了第一例描述T-MCA可能从头形成的病例。
一名41岁的妇女因左半偏瘫而从附近的诊所转诊到我们医院。磁共振（MR）成像显示双侧MCA轻度狭窄。然后，患者每年接受一次MR成像随访。53岁时的MR成像显示右侧M1闭塞。脑血管造影显示右侧M1闭塞，并形成与闭塞部位一致的丛状网络，导致从头T-MCA的诊断。
■这是描述从头T-MCA可能形成的第一个病例报告。尽管详细的实验室检查没有确认病因，怀疑自身免疫性疾病导致了这种血管病变。
一名41岁的妇女因左半偏瘫而从附近的诊所转诊到我们医院。磁共振（MR）成像显示双侧MCA轻度狭窄。然后，患者每年接受一次MR成像随访。53岁时的MR成像显示右侧M1闭塞。脑血管造影显示右侧M1闭塞，并形成与闭塞部位一致的丛状网络，导致从头T-MCA的诊断。
■这是描述从头T-MCA可能形成的第一个病例报告。尽管详细的实验室检查没有确认病因，怀疑自身免疫性疾病导致了这种血管病变。
