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目的探讨脊髓海绵状血管瘤(spinalcavernoushemangioma,SCH)的常见及少见MRI特征与临床、病理特征的相关性。方法回顾20例经手术病理证实的脊髓海绵状血管瘤,分析其信号特点,并与临床资料及病理切片进行对照研究。结果20例SCH中,5例位于颈段,12例位于胸段,2例位于腰段,1例位于圆锥马尾部位。SCH分为4型:髓内型、髓外硬膜下型、硬膜外型、椎体型。典型SCH的MRI表现为T1、T2加权像上混合信号团块,周边见低信号环,以T2显示明显。脊髓受压症状是其主要临床特征。SCH系红色或紫红色桑椹样病变,镜下由扩张的薄壁血窦组成,窦壁为薄层纤维外膜内衬单层内皮细胞构成。结论MRI是诊断SCH的最可靠方法,其MRI信号特征与其临床、病理特征相符。
Objective To investigate the correlation between common and rare MRI features of spinal cavernous hemangioma (SCH) and clinical and pathological features. Methods Twenty cases of cavernous hemangiomas confirmed by surgery and pathology were retrospectively analyzed. The signal characteristics were analyzed and compared with clinical data and pathological sections. Results Of the 20 patients with SCH, 5 were located in the cervical segment, 12 in the thoracic segment, 2 in the lumbar segment, and 1 in the cauda equina caudal region. SCH is divided into 4 types: intramedullary, extramedullary subdural, epidural, vertebral type. The typical MRI findings of MRI were mixed signal clusters on T1 and T2 weighted images, and low signal loops around the periphery, showing obvious T2. Spinal cord compression symptoms are its main clinical features. SCH Department of red or purple mulberry-like lesions, the microscope by the expansion of the thin-walled sinusoids, sinus wall for thin-fiber outer membrane lining monolayer of endothelial cells. Conclusion MRI is the most reliable method for the diagnosis of SCH, and its MRI signal characteristics are consistent with its clinical and pathological features.