儿童下丘脑错构瘤的MRI诊断  

MRI Diagnosis of Hypothalamic Hamartoma in Children

作　　者：周 莺[1] 唐旭峰[1] 李玉华[1] 朱 铭[1] 

机构地区：[1]上海第二医科大学新华医院,上海儿童医学中心200127

出　　处：《中国医学计算机成像杂志》2002年第1期50-52,共3页Chinese Computed Medical Imaging

摘　　要：目的:探讨MRI对儿童下丘脑错构瘤的诊断价值,从而提高对该疾病的MRI表现与临床症状的认识。材料和方法:回顾性分析6例儿童下丘脑错构瘤的临床资料和MRI表现,其中男性为4人,女性为2人。最小年龄为4个月,最大年龄为3岁4个月。结果:下丘脑错构瘤特征性临床症状为性早熟,MRI表现为鞍上下丘脑区异常信号,其中直径<10mm者为 3个,10-15mm者为1人,大于15mm者为2人。T1WI及T2WI信号均与脑灰质一致,且信号非常均匀,增强后结节均无强化。结论:下丘脑错构瘤是导致儿童性早熟的重要原因之一,结合患儿特征性临床表现及MRI表现,MRI能作出该病的明确诊断,无需病理诊断。Purpose: To evaluate MRI in the diagnosis of hypothalamic hamatoma in children.Materials and Methods: Clinical materials and MRI imaging of six patients with hopothalamic hamartoma were reviewed retrospectively.Male was 4, female was 2.The youngest was 4 months, the oldest was 3 years 4 months. Results: The main clinical features of the hypothalamic hamartoma were due to precocious puberty. MRI showed abnormal nodules located in the suprasella and interpeduncularis cistern regions. The dimeters of the tumors were < 10mm, 10-15mm and > 15mm in 3,1 and 2 cases respectively. The signal was consistent with matter, and the signal was very homogeneous.And no enhancement was observed. Conclusion: The hypothalamic hamartoma is one of the important causes of intense prcocious puberty.MRI can make correct diagnosis.

关 键 词：下丘脑错构瘤 MRI 儿童 诊断 

分 类 号：R739.41[医药卫生—肿瘤]