女性垂体Rathke囊肿MRI影像学特征分析  

Analysis of MRI imaging features of Rathke cyst in female pituitary gland

作　　者：杨琅环 杨燕 郑继坤 YANG Langhuan;YANG Yan;ZHENG Jikun(Department of Radiology,Yunnan Provincial Hospital of Traditional Chinese Medicine,the First Affiliated Hospital of Yunnan University of Chinese Medicine,Yunnan Province,Kunming 650021,China)

机构地区：[1]云南省中医医院云南中医药大学第一附属医院放射科,云南昆明650021

出　　处：《妇儿健康导刊》2023年第17期22-24,I0001,共4页JOURNAL OF WOMEN AND CHILDREN'S HEALTH GUIDE

基　　金：云南中医药大学第一附属医院首批入选“卓越青年人才计划”培养对象(云中附党字〔2021〕5号)。

摘　　要：目的分析女性垂体Rathke囊肿MRI影像学特征。方法对2021年1月至2023年1月云南省中医医院收治的30例女性垂体Rathke囊肿患者行MRI后的影像进行总结和分析,观察垂体Rathke囊肿的大小、信号、位置及形态等。结果30例患者中有10例患者的纵径和横径显著不成比例。病灶的形态多为类球形、球形,少数呈多角不规则或异型条状形。冠状位显示鞍区内的病灶呈左右对称,矢状位显示病灶多呈现为水滴状、圆形,而哑铃状发生在垂体前后叶之间。病灶内存在漂浮结节的患者9例,病灶主体在强化扫描后未见强化。7例患者显示边缘薄环状强化。结论女性垂体Rathke囊肿采用MRI诊断时,可发现垂体前后叶之间以及冠状位囊内漂浮结节无强化,且囊肿居中,无偏向对称分布。T2WI信号为稍高或高信号,T1WI信号为低信号。上述表现可作为Rathke囊肿的典型MRI影像表现特征。Objective To analyze the MRI imaging features of Rathke cyst in female pituitary gland.Methods The MRI images of 30 female patients with pituitary gland Rathke cyst in Yunnan Provincial Hospital of Traditional Chinese Medicine from January 2021 to January 2023 were summarized and analyzed,and the size,signal,position and shape of pituitary gland Rathke cyst were observed.Results The longitudinal and transverse diameters of 30 out of 10 patients were significantly disproportionate.Most of the lesions were spheroidal or spherical in shape,and a few were irregular polygonal or irregular strip shape.The coronal position showed that the lesions in the sellar region were bilaterally symmetrical,and the sagittal position showed that the lesions were mostly teardrop-shaped and rounded,while the dumbbell-shaped lesions occurred between the anterior and posterior pituitary glands.Nine patients with floating nodules in the lesions showed no enhancement of the lesion main body after intensive scanning.Seven patients showed thin annular enhancement at the edge of the lesions.Conclusion MRI of Rathke cysts in female pituitary gland can reveal no enhancement of floating nodules between anterior and posterior pituitary glands as well as in coronal cystic space,and the cysts are centered and have no biased symmetrical distribution.The T2WI signal is slightly high or hyperintense,while the T1WI signal is hypointense.The above performances can be used as typical MRI features of Rathke cyst.

关 键 词：垂体 RATHKE囊肿 MRI 特征 

分 类 号：R445.2[医药卫生—影像医学与核医学]