卵巢甲状腺肿的CT与MRI诊断  

CT and MRI features of struma ovarii

作　　者：缪小芬[1] 陆健 张学琴[1] 石甜甜[1] 李敏达[2] MIAO Xiaofen;LU Jian;ZHANG Xueqin;SHI Tiantian;LI Minda(Department of Radiology,the Third People＇s Hospital of Nantong,Nantong 226006,China;Department of Radiology,the Affiliated Hospital of Nantong University,Nantong 226000,China)

机构地区：[1]南通市第三人民医院影像科,江苏南通226006 [2]南通大学附属医院影像科,江苏南通226000

出　　处：《实用放射学杂志》2018年第4期572-574,共3页Journal of Practical Radiology

摘　　要：目的 探讨卵巢甲状腺肿（SO）的CT与MRI诊断价值。方法 回顾性分析9例经手术病理证实的SO的影像资料，9例患者均行CT检查，其中3例同时行CT和MRI检查，CT及MRI均为平扫加增强检查。观察病灶发生的部位、大小、形态、境界、密度/信号，同时观察囊壁及实性成分强化情况。结果 病灶位于右侧卵巢7例，左侧2例。肿瘤轮廓光整，境界清晰。肿瘤最大径5～15 cm。肿瘤呈类圆形2例，椭圆形2例，不规则形5例。9例均呈囊实性肿块，多房囊性为主。囊性成分CT密度不等，MRI多数囊呈T1WI低信号、T2WI高信号，少部分囊T1WI、T2WI均为高信号。3例囊壁见点弧状钙化，2例病灶含脂肪。实性成分CT平扫密度较高，增强后CT与MRI均明显强化。6例合并子宫肌瘤，2例合并对侧卵巢畸胎瘤。结论 SO的CT与MRI表现有一定的特征，常表现为单侧附件区囊实性肿块，增强后实性成分明显强化，但病灶边界整齐清晰。CT与MRI各具优势。Objective To investigate the diagnostic value of CT and MRI in struma ovarii （SO）.Methods Imaging features of 9 cases with SO confirmed by pathology were analyzed retrospectively.9 patients underwent CT,3 cases underwent both CT and MRI, which were both pre-and post-contrast enhancement.The location, size, shape, margin, density or signal intensity of the lesion, as well as the enhancement patterns of the cystic wall and solid components were observed.Results 7 tumors were located in the right ovary and 2 in the left, with smooth margins and clear boundary.The diameters of the lesions were 5--15 cm.The tumors were round in 2 cases, oval round in 2 cases and irregular in 5 cases.9 tumors all appeared cystic solid type, mainly mun-cystic.The cystic components showed heterogeneous density on CT, mostly low signal intensity on T1 WI and high signal intensity on T2 WI,few cystic components showed high signal intensity on both T1WI and T2 WI.Calcifications were found in 3 cases and fat in 2 cases. The solid components showed slightly high density on plain CT scanning and enhanced markedly either on CT or MRI.6 cases were accompanied with hysteromyomas and 2 cases with ovarian embryoma in the contralateral ovary.Conclusion CT and MRI appearances of SO have a certain characteristic, often manifested as a unilateral adnexal cystic solid mass and the solid components obviously enhancement,but the boundary is smooth and elear.CT and MRI have different advantages.

关 键 词：卵巢甲状腺肿 计算机体层成像 磁共振成像 

分 类 号：R737.31[医药卫生—肿瘤] R814.42[医药卫生—临床医学]