摘要
目的探讨颅内畸胎瘤的X线计算机断层成像(CT)与磁共振成像(MRI)表现及其诊断价值。方法回顾性分析西南医科大学附属医院2014年1月至2016年4月经病理证实的6例颅内畸胎瘤的临床与影像学资料。结果本组患者中成熟型畸胎瘤3例,未成熟型畸胎瘤2例,伴有恶性转化的畸胎瘤1例;位于中线结构的3例,非中线结构3例。6例中4例CT与MRI均表现为囊实性肿块,另2例表现特殊;其中1例CT呈实性肿块,MRI呈混杂信号肿块;另1例CT与MRI均表现为囊性肿块伴壁结节,并见液液平,轻度瘤周水肿。增强扫描肿块实性部分及壁结节呈中重度强化,囊性部分未见强化。6例仅1例表现典型,脂肪与钙化并存。所有病例均无明显占位效应。结论颅内畸胎瘤的影像表现与肿瘤成分相关,典型者可做出明确诊断,不典型者诊断困难。CT显示钙化敏感,MRI显示脂肪敏感,CT联合MRI可以提高颅内畸胎瘤的定位及定性诊断。
Objective To explore the features and diagnostic value of X-ray computed tomography （CT） and magnetic resonance imaging （MRI） with intracranial teratomas. Methods The clinical and imaging data of 6 cases with intracranial teratomas who confirmed by pathology in the Affiliated Hospital of Southwest Medical University from Jan-uary 2014 to April 2016 were retrospectively analyzed. Results Among the 6 patients, there were 3 cases of mature ter-atoma, 2 cases of immature teratoma, and 1 case accompanied by malignant transformation of teratoma. Three cases were located in the central line area, and 3 were not. Four of the six cases of CT and MRI showed cyst-solidary mass, and 2 had special features （one case showed solidary mass on CT and mixed signal mass on MRI;the other of CT and MRI showed cyst-solidary mass associated with wall nudoul, liquid-liquid flat and slight peritumoral edema）. The con-trast-enhanced scan of solid part and the wall nodule showed moderate and severe enhancement, and the cystic part was not enhanced. Only one case showed typical features （coexistence of fat and calcification） in 6 cases. All cases show no remarkable occupying effect. Conclusion The imaging features of the intracranial terotoma are related to the composi-tion of the tumors. It is easy to diagnose the typical cases and difficult for atypical ones. CT showed calcification sensitiv-ity, and MRI showed fat sensitivity. CT combined with MRI can improve the location and qualitative diagnosis of intra-cranial terotoma.
出处
《海南医学》
CAS
2017年第10期1635-1637,共3页
Hainan Medical Journal
关键词
畸胎瘤
颅内
计算机断层扫描
磁共振成像
Terotoma
Intracranial
X-ray computed tomography （CT）
Magnetic resonance imaging （MRI）
