中国临床医学影像杂志2017，Vol.28Issue(2)：77-80,4.
儿童幕上原始神经外胚层肿瘤的MRI诊断及病理对照研究
Analysis of MRI manifestation and relatives pathology feature of supratentorial primitive neuroectodermal tumor in children
管红梅 1赵萌 2李小会 1高修成 1席艳丽1
作者信息
- 1. 南京医科大学附属儿童医院放射科,江苏南京210008
- 2. 南京医科大学第一附属医院放射科,江苏南京210009
- 折叠
摘要
Abstract
Objective:To investigate the MRI features of the supratentorial primitive neuroectodermal tumor (sPNET) in children.Methods:Twenty cases of sPNET confirmed by operation and pathology were collected,all patients underwent conventional MRI scan,enhanced scan,and diffusion-weighted imaging (DWI) scan.Results:Twenty cases of sPNET were all located in supratentorial cerebral hemisphere (frontal,temporal,top,occipital,insular lobe,lateral ventricle).Fourteen cases were shown huge cystic-solid mixed masses,4 cases were manifestated great solid tumor with microcystic,2 cases were small tumor size and calcification.No edema or peritumoral edema around the tumor,hemorrhage in 5 cases,3 cases of postoperative examination spreaded along the subarachnoid.MR scan was shown mixed signal,the solid part of tumor was shown equal or slightly low signal on T1WI,equal or slightly hyperintense on T2WI,high signal on DWI,and slightly low signal on ADC map.The signal of cystic region was consistent with cerebmspinal fluid and the region of cyst with hemorrhage was shown complex signal.The solid part of the tumor was enhanced moderately or markedly.Conclusion:There were some imaging features with sPENT.DWI was especially beneficial to nature of tumor diagnosis,providing information of tumor invasion and whether implantation metastasis along the subarachnoid existed.It was beneficial to clinical staging and treatment plan.关键词
神经外胚瘤,原始/儿童/病理学/磁共振成像Key words
Neuroectodermal tumors, primitive/Child/Pathology/Magnetic resonance imaging分类
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管红梅,赵萌,李小会,高修成,席艳丽..儿童幕上原始神经外胚层肿瘤的MRI诊断及病理对照研究[J].中国临床医学影像杂志,2017,28(2):77-80,4.
