卵巢颗粒细胞瘤的MRI诊断  

MRI Diagnosis of Ovarian Granulosa Cell Tumor

作　　者：刘波[1] 魏光师[1] 陈树良[1] 周霞[1] 

机构地区：[1]广州中医药大学附属广东省中医院影像科,510120

出　　处：《临床放射学杂志》2003年第4期295-297,共3页Journal of Clinical Radiology

摘　　要：目的　分析卵巢颗粒细胞瘤的MRI特征。资料与方法　回顾性分析 15例卵巢颗粒细胞瘤的MRI特征 ,并与手术及病理对照研究。结果　 15例中 ,囊实性肿块 8例 ,内有多发大小不等的囊性变 ,囊内壁光滑 ,囊内容物MRT1WI呈等低混杂信号 ,T2 WI呈混杂高信号 ,囊与囊间有厚壁分隔 ;实性肿块 3例 ,T1WI及T2 WI信号均高于肌肉 ;单一较大的囊性病灶 4例。 13例子宫均匀增大 ,内膜增厚 ,1例并有子宫内膜癌。结论　诊断卵巢颗粒细胞瘤的可靠依据为 :(1)肿瘤内多发囊变 ,间有厚壁分隔 ,囊内壁光滑 ;(2 )合并子宫体积增大 ,内膜增生。Objective To discuss MRI features of granulosa cell tumor of ovary.Materials and Methods MRI findings in 15 cases with pathologically proved ovarian granulosa cell tumor were retrospectively analyzed, and a comparison with surgical and pathological results was made.Results Of 15 cases, the lesion presented as mixed cystic solid mass in 8 with multiple cystic degeneration inside, the inner cystic wall was smooth and the cystic contents displayed iso mixed with low intensity signal on T 1WI and mixed high intensity signal on T 2WI, the cysts were separated by thick septa. Solid mass was seen in 3 cases, with the lesion's signal being higher than that of the muscles on both T 1WI and T 2WI. In the remaining 4 cases the lesions were manifested as a solitary large cystic mass. Uniformly enlarged uterus and thickened endometrium were seen in 13 cases.Conclusion Granulosa cell tumor of ovary has two reliable MRI signs: (1) multiple degeneration cysts within the tumor which had a smooth inner wall and were separated by thick septa; (2) enlarged uterus and thickened endometrium are usually accompanied.

关 键 词：卵巢颗粒细胞瘤 MRI 诊断 磁共振成像 手术切除 

分 类 号：R737.31[医药卫生—肿瘤]