基底节区生殖细胞瘤的C T、MR I诊断价值  

Diagnostic value of CT and MRI in basal ganglia germinoma

作　　者：段崇锋[1] 张丕宁[1] 高耸[1] 刘旭顺 隋庆兰[1] 

机构地区：[1]青岛大学医学院附属医院放射科,山东青岛266000

出　　处：《实用放射学杂志》2014年第4期565-567,592,共4页Journal of Practical Radiology

摘　　要：目的：探讨基底节区生殖细胞瘤的CT、MRI诊断价值。方法回顾分析经手术病理证实及诊断性放疗临床确诊的17例基底节区生殖细胞瘤的临床及影像学资料。结果17例均为男性,年龄8-18岁,平均10.8岁。最常见临床症状为偏身活动障碍。影像特点：①肿瘤多表现为不规则形（11/17,64.7%）,囊变多见（10/17,58.8%）,多无占位效应及瘤周水肿（12/17,70.6%）；②MRI常规信号多接近灰质信号,DWI 呈高信号,CT 呈高密度；③病变多发、沿侵犯结构向远处延伸及同侧华勒氏变性至少出现1项者15例（15/17,88.2%）。结论基底节区生殖细胞瘤临床及影像表现有一定特点,CT、MRI有较高的诊断价值。Objective To investigate the diagnostic value of CT and MRI in basal ganglia germinoma.Methods The clinical and imaging data in 1 7 patients with basal ganglia germinoma proved pathologically or clinically were analyzed retrospectively.Results All patients were male with an age rang from 8 to 18 years old and a mean age of 10.8 years.The most common symptom was hemi-paresis.Imaging features of the lesion were as follows：① usually irregular shape（11/17,64.7%）and cystic degeneration （10/17, 58.8%）without space-occupying effect and surrounding edema （12/17,70.6%）;② isointensity on conventional MRI,hyperintensi-ty on DWI and hyperdensity on CT;15 patients （15/17,88.2%）with one or more than one appearances including multiple lesions, the lesion extending into surrounding structures and Waller degeneration.Conclusion Some clinical and imaging features of the basal ganglia germinoma are characteristic,and CT and MRI shows higher diagnostic value for the disease.

关 键 词：生殖细胞瘤 基底节 诊断显像 

分 类 号：R739.41[医药卫生—肿瘤] R814.42[医药卫生—临床医学]