| 外周性原始神经外胚层肿瘤的CT及MRI影像学特征 |
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| 引用本文： | 许倩,徐凯,李绍东,孟闫凯,杨春,刘颖.外周性原始神经外胚层肿瘤的CT及MRI影像学特征[J].临床放射学杂志,2011,30(9). |
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| 作者姓名： | 许倩 徐凯 李绍东 孟闫凯 杨春 刘颖 |
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| 作者单位： | 221002,徐州医学院附属医院影像科 |
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| 摘 要： | 目的分析外周性原始神经外胚层肿瘤(peripheral primitive neuroectodermal tumor,pPNET)的CT和MRI影像学表现,以提高对其认识和诊断的准确性。资料与方法回顾性分析经病理证实的11例pPNET患者的CT及MRI影像学表现。11例pPNET中9例行CT检查,2例行脊柱MRI检查。结果 11例病灶中1例位于鼻腔,4例位于胸壁,2例位于腹膜后,2例位于盆腔,2例位于脊柱。9例软组织pPNET表现为较大且浸润性生长的软组织肿块,伴或不伴邻近骨质的溶骨性破坏。肿块内密度多不均匀,增强后呈中等程度以上不均匀强化。双期扫描动脉期多数肿瘤内见细小供血动脉,静脉期肿瘤持续性强化且密度趋向均匀。2例脊柱pPNET表现为椎体骨质破坏及周围软组织肿块,肿块边界不清,包绕椎体并延伸至椎管内压迫脊髓。增强后病灶明显强化且不均匀。结论 pPNET有一定的临床及影像学特点,密切结合临床及影像学表现是诊断的关键。
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| 关 键 词： | 原始神经外胚瘤 外周 体层摄影术 X线计算机 磁共振成像 |
CT and MRI Features of Peripheral Primitive Neuroectodermal Tumors |
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| XU Qian,XU Kai,LI Shaodong,et al..CT and MRI Features of Peripheral Primitive Neuroectodermal Tumors[J].Journal of Clinical Radiology,2011,30(9). |
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| Authors: | XU Qian XU Kai LI Shaodong |
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| Affiliation: | XU Qian,XU Kai,LI Shaodong,et al.Department of Radiology,Affiliated Hospital of Xuzhou Medical College,Xuzhou 221002,P.R.China |
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| Abstract: | Objective To analyze the CT and MRI features of peripheral primitive neuroectodermal tumors(pPNETs),and to improve its diagnostic accuracy.Materials and Methods Retrospectively analysis of CT and MRI features of 11 cases with peripheral primitive neuroectodermal tumors confirmed pathologically and immunohistochemically was performed.Correlation with clinical data and pathology were obtained.Spiral CT(9/11) and MRI(2/11) scanning were performed preoperatively.Results 11 lesions were located in nasal cavity(n... |
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| Keywords: | Primitive neuroectodermal neoplasms peripheral Tomography X-ray computed Magnetic resonance imaging |
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