松果体区及鞍区生殖细胞瘤MRI诊断 |
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引用本文: | 莫昌期,李绍林,王斌. 松果体区及鞍区生殖细胞瘤MRI诊断[J]. 牡丹江医学院学报, 2010, 31(5): 26-30 |
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作者姓名: | 莫昌期 李绍林 王斌 |
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作者单位: | 1. 广东医学院附属厚街医院放射科,广东,东莞,523945 2. 南方医科大学附属南方医院影像中心,广东,广州,510515 |
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摘 要: | 目的:分析松果体区及鞍区生殖细胞瘤的MRI影像特点及鉴别诊断。方法:回顾性分析经手术和病理证实的鞍区、松果体区生殖细胞瘤10例;男9例,女1例;年龄5~63岁(平均18.8岁)。全部病例均行MR平扫和增强扫描。结果:位于松果体区4例,其中1例累及第四脑室;鞍区6例。生殖细胞瘤临床表现缺乏特异性,MR上T1加权为等或略低信号;T2加权为均匀或不均匀等或高信号肿块,增强扫描呈均匀或不均匀强化。结论:生殖细胞瘤临床和影像表现缺乏特异性,MR I是最有效的影像学检查方法。
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关 键 词: | 生殖细胞瘤 松果体区 鞍区 磁共振成像 |
MRI DIAGNOSES OF GERMINOMA IN SELLAR AND CONARIAL REGIONS |
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Affiliation: | Mo Chang-qi et al(HouJie Hospital of Guangdong Medical College,Dongguan city,Guangdong 523945) |
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Abstract: | Objective:To analyse MRI characteristics of germinoma in sellar and conarial region.Materias and Methods:Ten patients with germinoma proved by operation and pathology were retrospectively reviewed.All patients(9 males and 1 female,whose age ranged from 5 years to 65 years) were examined by routine T1-weigted,T2-weigted scanning an contrast enhancement scanning.Results:The lesions were located in sellar region in 6 cases;located in conarial region in 4 cases,and involved the 4th ventricle in 1 case.Germinoma was observed slightly hypointensity or iso-intensity signal on T1WI,and heterogeneously hyperintensity or iso-intensity signal on T2WI.Furthermore,the masses showed homogeneous or heterogeneous enhancement after contrast-enhancement scaning.Conclusions:Germinoma was short of specificity in the clinical expression and imaging feature.MRI is the optimum technique to detect germinoma in the brain. |
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Keywords: | Germinoma Sellar region Conarial region Magnetic resonance imaging |
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