易误诊神经垂体颗粒细胞瘤MRI影像特征及临床观察  

MRI Features and Clinical Observation of Neurohypophyseal Granulosa Cell Tumor Prone to Misdiagnosis

作　　者：宁绍爽 NING Shaoshuang(Nanyang Medical College,Nanyang,Henan 473000)

机构地区：[1]南阳医学高等专科学校医学技术系,河南南阳473000

出　　处：《科技与健康》2023年第1期117-120,共4页Technology and Health

摘　　要：探讨了易误诊神经垂体颗粒细胞瘤MRI影像特征,并对临床进行观察。选择南阳医学高等专科学校于2011年8月-2022年10月收治的5例神经垂体颗粒细胞瘤患者作为研究对象,分析并鉴别其肿瘤MRI影像特征。研究表明,神经垂体颗粒细胞瘤大多数为良性,但是少数可表现为恶性以及转移征象,应引起临床医师的关注与警惕;神经垂体颗粒细胞瘤多期增强扫描,早期多呈明显持续强化征象,晚期以肿瘤中心区强化程度下降显著,因而表现为“薄环状”强化特点,并可见裂隙状小血管样强化信号影。Objective To improve the understanding of neurohypophysis granulosa cell tumor and avoid imaging and clinical.misdiagnosis;Methods Collect 5 cases of neurohypophysis granulosa cell tumor from 2011.08-2022.10 in our hospital,analyze and differentiate the MRI features of tumors,and review the literature comprehensively;Conclusion Neurohypophyseal granulosa cell tumor,most of which are benign,but a few can show malignant and metastatic signs,which should arouse the attention of clinicians;Neurohypophyseal granulosa cell tumor has certain MRI imaging characteristics.The main manifestations of plain scan are T2WI or slightly low signal.The mass can be cystic,but calcification is rare;Multi-phase enhancement scan of neurohypophyseal granulosa cell tumor showed obvious and continuous enhancement signs in the early stage,while in the late stage,the degree of enhancement in the central area of the tumor decreased significantly,so it showed the"thin ring"enhancement feature,and the fissure small vascular enhancement signal shadow could be seen.

关 键 词：神经垂体 颗粒细胞瘤 磁共振 

分 类 号：R445.2[医药卫生—影像医学与核医学] R739.4[医药卫生—诊断学]