CAJ | 학술논문

目的：探讨血管外皮瘤的CT和MRI表现。方法1例进行上腹部CT及MRI扫描；5例行MRI扫描，并回顾性分析6例经组织学证实的血管外皮瘤的CT及MRI表现。结果4例血管外皮瘤位于颅内，1例发生于颈椎椎管，1例发生于肝脏。CT及MRI表现：1例肝脏血管外皮瘤CT平扫为类圆形稍低密度，其MR平扫表现为边界模糊的稍长T1长T2信号，增强后均显示均匀显著强化；4例颅内脑外血管外皮瘤及1例颈椎椎间孔血管外皮瘤MRI表现：与脑灰质比较，病灶均呈类圆形等T1、等T2信号；增强后均显著均匀强化。结论1例肝脏血管外皮瘤CT和MRI增强后显著强化，强化时间持续7分钟以上是肝血管外皮瘤较典型的影像表现，颈部及颅内血管外皮瘤MRI平扫为稍长T1稍长T2信号；增强后持续均匀强化。
목적：탐토혈관외피류적CT화MRI표현。방법1례진행상복부CT급MRI소묘；5례행MRI소묘，병회고성분석6례경조직학증실적혈관외피류적CT급MRI표현。결과4례혈관외피류위우로내，1례발생우경추추관，1례발생우간장。CT급MRI표현：1례간장혈관외피류CT평소위류원형초저밀도，기MR평소표현위변계모호적초장T1장T2신호，증강후균현시균균현저강화；4례로내뇌외혈관외피류급1례경추추간공혈관외피류MRI표현：여뇌회질비교，병조균정류원형등T1、등T2신호；증강후균현저균균강화。결론1례간장혈관외피류CT화MRI증강후현저강화，강화시간지속7분종이상시간혈관외피류교전형적영상표현，경부급로내혈관외피류MRI평소위초장T1초장T2신호；증강후지속균균강화。
Objective To investigate the CT and MRI features of the hemangiopericytoma. Methods One patient underwent an abdominal helical CT scan and abdominal MRI scan,five of them only underwent MRI scan.The CT and MRI findings of six patients with histologically proved hemangiopericytoma were retrospectively reviewed. Results Hepatic hemangiopericytmna were slightly hypodense on plain CT.The lesions demonstrated slightly long T1 long T2 signal with ill defined border on plain MR , and had evident and homogeneous enhancement On post-contrast CT and MRI scan. The lesions were from the endocranium in 4 cases, the Cervical spinal canal in 1cases. On MR TlWI and T2WI, hemangiopericytomas from the endocranium and the Cervical spinal canal were isointense to gray matter with defined border.and showed marked homogeneous contrast enhancement. Conclusions Marked homogeneous enhancement of hepatic hemangiopericytmna in 1 case on post-contrast CT and MRI scan, more than 7 minutes' contrast delay is typical manifestations of hemangiopericytoma of liver. Hemangiopericytmna from the endocranium and the Cervical spinal canal demonstrated iso-T1 and iso-T2 signal on plain MRI and appeared moderate homogeneous enhancement on post-contrast MRI scan.