垂体转移瘤的磁共振成像表现  

MRI features of the pituitary metastasis

作　　者：邹医 马亚辉 胡全树 Zou Yi;Ma Yahui;Hu Quanshu(Department of Radiology,Chibi People′s Hospital,Hubei 437300,China)

机构地区：[1]湖北省赤壁市人民医院放射科,437300

出　　处：《实用医学影像杂志》2020年第6期609-611,共3页Journal of Practical Medical Imaging

摘　　要：目的探讨垂体转移瘤的磁共振成像(MRI)表现特点。方法回顾性分析并评价5例垂体转移瘤的MRI表现特征及临床。结果原发肿瘤包括肺癌2例、乳腺癌1例、脑胶质母细胞瘤1例、结肠癌1例。合并颅内多发转移4例,1例单发,垂体转移灶位于腺垂体和(或)垂体柄,表现为垂体不规则增大,T1WI呈等或略低不均匀信号,T2WI呈等、略高或等高混杂信号,增强后病灶多发轻度强化4例,明显强化1例。其中,有头痛及视力下降3例、垂体前叶功能减退2例、尿崩症1例。结论垂体转移瘤MR表现缺乏特征性,合并脑内多发病灶易考虑转移瘤,单发病灶易导致误诊。Objective To explore the MRI features of pituitary metastases.Methods MRI features and clini-cal characteristics of 5 patients with pituitary metastases were retrospectively collected.Results Primary malignant tumors were including lung carcinoma(2 cases),breast carcinoma(1 case),glioblastoma(1 case)and colon cancer(1 case).Four cases with multiple intracranial metastases and 1 case was single.The lesions were located in the pituitary and/or pituitary stalk.The lesions showed as irregular enlarge pituitary,T1WI showed equal or slightly lower signal,T2WI showed equal,slightly higher or mixed signal.The lesions were mildly enhanced in 4 cases,and significantly enhanced in 1 case.There were headache and decreased vision in 3 cases,anterior pituitary hypofunction in 2 cases,and diabetes insipidus in 1 case.Conclusion MR findings of pituitary metastases were not of characteristic,metastatic tumors were easy to consider with multiple lesions in the brain,single lesions easily were been misdiagnosis.

关 键 词：垂体 肿瘤转移 磁共振成像 

分 类 号：R445.2[医药卫生—影像医学与核医学] R736.4[医药卫生—诊断学]