儿童脉络丛肿瘤影像特点回顾分析  

Analysis of imaging features of choroid plexus tumor in children

作　　者：宋鹏鹏 聂磊[1] 时胜利 刘玥[2] Song Pengpeng;Nie Lei;Shi Shengli;Liu Yue(Department of Radiology,Children′s Hospital Affiliated to Zhengzhou University,Henan 463000,China;不详)

机构地区：[1]郑州大学附属儿童医院放射科 [2]首都医科大学附属北京儿童医院放射科,国家儿童医学中心

出　　处：《实用医学影像杂志》2024年第5期363-366,共4页Journal of Practical Medical Imaging

基　　金：国家区域医疗中心开放课题(NRMC0108)。

摘　　要：目的旨在对小儿脉络丛乳头状瘤(CPT)的影像特征进行分析,对该病的影像学及临床特点进行总结,加深对该病的了解,提高诊断符合率。方法回顾分析2016年8月至2023年1月于本院收治的16例儿童CPT的影像资料,所有病例均行CT及磁共振成像(MRI)。结果病灶位于左侧脑室9例,右侧脑室3例,三脑室3例;双侧脑室1例,患儿发病年龄区间为2个月至6岁。病理证实10例脉络丛乳头瘤、1例不典型脉络丛乳头状瘤(ACPP)、5例脉络丛癌。CT呈微高密度影,2/16(12.%)内见点状钙化灶;MRI中,T_(1)WI主要为等信号,T_(2)WI、液体衰减反转恢复序列(FLAIR)信号稍高,可囊性、坏死和病灶内出血,实性部分DWI高信号,并信号欠均,增强后明显不均匀强化。脉络丛乳头状瘤(CPP)周围组织分界清晰;ACPP、脉络丛症(CPC)与周围分界欠清,瘤周可见水肿;ADC值低,代表恶性程度大。结论小儿CPT具有相应的临床表现及影像学特点,CT、MRI检查显示病灶的形态、位置、大小、边界、钙化、囊变、强化特点、与周围组织关系、是否伴有脑积水等有助于诊断及鉴别诊断,提高术前诊断水平。Objective To analyze the imaging features of choroid plexus papilloma(CPT)in children,summarize the imaging and clinical features of the disease,deepen the understanding of the disease,and improve the diagnostic coincidence rate.Methods The imaging data of 16 children with CPT from August 2016 to January 2023 were retrospectively analyzed.All cases were treated with CT and MRI.Results The lesions were located in the left ventricle in 9 cases,the right ventricle in 3 cases and the third ventricle in 3 cases.One patient was diagnosed with bilateral ventricles,and the age range of onset was 2 months to 6 years old.Pathology confirmed 10 cases with chorioid papilloma,1 case with atypical chorioid papilloma(ACPP),and 5 cases with chorioid carcinoma.The CT scan showed a small density,2/16(12%)found punctate calcification.In MRI,T_(1)WI was mainly isosignal,T_(2)WI and FLAIR signals were slightly higher,cystic,necrotic and intralesional bleeding were slightly higher,solid DWI signals were high and underuniform,and the enhancement was obviously uneven after enhancement.The tissue around CPP is clearly demarcated.The boundary between ACPP and CPC was not clear,and peritumoral edema was observed.Low ADC value indicated a high degree of malignancy.Conclusion Children with CPT have corresponding clinical manifestations and imaging characteristics.CT and MRI showing the lesion shape,location,size,boundary,calcification,cystic change,enhancement characteristics,relationship with surrounding tissues,whether accompanied by hydrocephalus,etc.are helpful for diagnosis and differential diagnosis,improve the preoperative diagnosis level.

关 键 词：儿童 脉络丛乳头状瘤 磁共振成像 ADC值 影像特点 

分 类 号：R739.4[医药卫生—肿瘤] R445.2[医药卫生—临床医学]