MRI鉴别诊断中枢神经系统孤立性纤维瘤的特征及临床意义

目的 探究MRI鉴别诊断中枢神经系统孤立性纤维瘤的特征及临床意义.方法 选择2014年1月至2020年10月接收的50例疑似中枢神经系统孤立性纤维瘤患者作为研究对象,所有患者均接受MRI、CT以及病理检查,对其检查结果进行回顾性分析.以病理检查结果为金标准,比较MRI、CT检查对中枢神经系统孤立性纤维瘤的诊断效能.结果...

Characteristics and clinical significance of MRI in differential diagnosis of solitary fibroma of central nervous system

Objective To explore the characteristics and clinical significance of MRI in differential diagnosis of solitary fibroma of central nervous system.Methods Fifty patients with suspected solitary fibroma of central nervous system received from January 2014 to October 2020 were selected as the research objects.All patients underwent MRI,CT and pathological examination,and the examination results were analyzed retrospectively.Taking the results of pathological examination as the gold standard,the efficacy of MRI and CT in the diagnosis of solitary fibroma of central nervous system was compared.Results Among 50 patients with suspected central nervous system solitary fibroma,pathological examination showed that 7 patients were diagnosed with central nervous system solitary fibroma.A total of 6 patients with central nervous system solitary fibroma were detected by MRI,of which 4 cases were intracranial tumors and 2 cases were intraspinal tumors;the diameter of intracranial tumors was 2.8-6.4 cm,with an average diameter of(3.65±0.57)cm;the diameters of the tumors in the spinal canal were 1.8 cm and 3.0 cm,respectively.The tumor lesions of the patients were all well-defined;DWI showed that 2 cases had slightly high signal,2 cases had equal signal,and 2 cases had slightly low signal.Among the 4 patients with intracranial tumors,2 patients had mild to moderate edema,1 patient had extensive peripheral edema,and 1 patient had no edema;enhanced MRI scans showed that the patient's lesions were significantly enhanced,in which 3 patients had uneven enhancement and 1 patient uniform enhancement;3 cases of adjacent bones showed damage or hyperplasia,and 1 case had meningeal tail sign.Among the 2 patients with intraspinal tumors,1 case had equal T₁ signal and slightly longer T₂ signal,and 1 case had slightly longer T₁ signal and equal T₂ signal;enhanced scan showed obvious uniform enhancement,and there was no meningeal tail sign.CT examination showed that 3 patients had solitary fibroma of the central nervous system.The plain scan showed that it was mainly high-density and uneven density.There were irregular isostensive shadows inside.The enhanced scan showed that the density of the lesions was uniform and enhanced.The sensitivity and positive predictive value of MRI in diagnosing solitary fibroma of central nervous system were higher than those of CT examination,and the differences were statistically significant(P<0.05).Conclusion MRI has high application value in the differential diagnosis of patients with solitary fibroma of central nervous system.It can detect cases more accurately,so as to provide reference basis for the formulation of disease treatment plan and improve the prognosis,which is worthy of popularization and application.