| 儿童第四脑室及小脑常见肿瘤的CT鉴别诊断初探 |
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| 引用本文： | 陶勇浩,王大有,邓开鸿,庄章圃.儿童第四脑室及小脑常见肿瘤的CT鉴别诊断初探[J].四川大学学报(医学版),1991(1). |
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| 作者姓名： | 陶勇浩 王大有 邓开鸿 庄章圃 |
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| 作者单位： | 华西医大放射诊断学教研室,华西医大放射诊断学教研室,华西医大放射诊断学教研室,华西医大放射诊断学教研室 研究生 四川省肿瘤医院影像科 |
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| 摘 要： | 作者比较分析了儿童期幕下小脑星形细胞瘤、髓母细胞瘤、室管膜瘤的CT资料40例。指出在多数病例作出肿瘤组织学类型预测性诊断是可能的,确定第四脑室残腔的存在及位置乃鉴别诊断之首要步骤;平扫时的肿瘤密度对区别髓母细胞瘤和小脑星形细胞瘤较有价值;小脑星形细胞瘤囊变倾向突出,以“囊-壁结节”构型尤具诊断特异性;室管膜瘤钙化检出率较高。
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| 关 键 词： | 儿童脑瘤 幕下肿瘤 电子计算机断层扫描 鉴别诊断 |
Common Tumors of the Fourth Ventricle and Cerebellum in Childhood:Evaluation of CT Differential Diagnosis |
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| Tao Yonghao,Wang Dayou,Den Kaihong,Zhuang Zhangpu.Common Tumors of the Fourth Ventricle and Cerebellum in Childhood:Evaluation of CT Differential Diagnosis[J].Journal of West China University of Medical Sciences,1991(1). |
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| Authors: | Tao Yonghao Wang Dayou Den Kaihong Zhuang Zhangpu |
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| Institution: | Tao Yonghao;Wang Dayou;Den Kaihong;Zhuang Zhangpu Department of Roentgenology |
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| Abstract: | Forty pediatric patients withinfratentorial cerebellar astrocytomas.medulloblastomas and ependymomas were evaluated. In most cases it was possible topredict the histological type of these tumorsby CT.The search for the residual fourthventricle cavity and defining its locationwere the first step in differential diagno-sis. The density of tumor on plain scans was of value to distinguish medulloblas-tomas from astrocytomas. Cerebellar astro-cytomas had an obvious tendency to de-velop cystic change. Especially, the confi-guration of "Cyst-with-mural nodule" wasthe most specific characteristic in diagno-sis. Just like medulloblastomas and epen-dymomas, cerebellar astrocytomas mayhave also the tendency to arise at themidline in childhood. The incidence of calcification was rather high in cpcndy-momas. |
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| Keywords: | Child brain tumor Infratentorial tumor Computed tomography Differentiation |
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