卵巢畸胎瘤的MRI影像学诊断  

DIAGNOSTIC VALUE OF MRI TO OVARIAN TERATOMA

作　　者：辜忠良 顾涛[2] 王晓芸[3] 周娟[4] 黄丽英[4] 

机构地区：[1]荣县人民医院放射科MRI室,四川荣县643100 [2]荣县人民医院B超室,四川荣县643100 [3]荣县人民医院妇产科,四川荣县643100 [4]荣县人民医院病理科,四川荣县643100

出　　处：《泸州医学院学报》2011年第6期698-701,共4页Journal of Luzhou Medical College

摘　　要：目的:探讨卵巢畸胎瘤的MRI表现及其病理基础,以提高MRI的诊断准确性。方法:回顾性分析24例经手术、病理证实的卵巢畸胎瘤MRI影像表现特点。结果:24例卵巢畸胎瘤中,左侧14例,右侧8例,双侧2例,最大直径15.3cm,形态较规则呈圆形或椭圆形。22例见脂质,14例见明显双低钙质信号;1例显示壁结节、信号欠均匀,并少量盆腔积液。结论:对于发生在卵巢的肿瘤,肿块内有T1WI、T2WI均呈高信号的脂肪信号组织存在是诊断畸胎瘤的主要依据,MRI脂肪抑制序列其高信号可被抑制,有利于该病的诊断。Objective： To study MRI imaging manifestations of ovarian teratoma and their pathologic basis to improve the MRI diagnosis accuracy.Methods： The features of MRI imaging of 24 cases of ovarian teratoma confirmed by surgery and pathology were analyzed retrospectively.Results：14 cases were left, 8 cases were right, 2 cases were bilateral, diameter the biggest one was 15.3 era, the form was round or oval. 22 cases were seen lipid and 14 cases were obviously seen double low calcium signals, 1 case showed wall nodules, signal lacked evenness, and a few pelvic cavity accumulated fluid. Conclusion： Tumor occurred in ovary shows T1WI and T2WI, tending to high signal of fat signal organization , which is the main basis of diagnosis of teratoma. High signal of MRI fat inhibit sequence can be suppressed, which is helpful for the diagnosis of the disease.

关 键 词：畸胎瘤 卵巢 磁共振成像 

分 类 号：R445.2[医药卫生—影像医学与核医学] R737.31[医药卫生—诊断学]