卵巢纤维瘤的CT和MRI影像特征

发布时间：2018-02-10 19:47

本文关键词： 卵巢纤维瘤体层摄影术 X线计算机磁共振成像　出处：《中国医学影像技术》2017年09期 　论文类型：期刊论文

【摘要】：目的探讨卵巢纤维瘤的CT及MRI特征。方法回顾性分析经手术病理证实的42例卵巢纤维瘤的CT及MRI资料,21例患者接受CT检查,26例接受MR检查,5例同时接受CT和MR检查,分析其CT和MR特征。结果42例卵巢纤维瘤中单纯型29例,变性型11例,特殊型2例。肿瘤均单发,呈圆形、类圆形或分叶状,边界清晰40例,部分边界模糊2例,伴钙化3例,出血1例。肿瘤最大径1.4~26.7cm,中位值5.5cm。单纯型CT平扫呈等密度,MRI上T1WI及T2WI均呈低信号;变性型CT呈斑片状、裂隙状低密度区,T2WI呈高信号,增强扫描肿瘤实质几乎无强化或仅轻微强化;特殊型1例内见大量出血,1例明显强化,均误诊为恶性肿瘤。结论卵巢纤维瘤的CT及MRI表现具有一定的特征,但确诊仍需依靠病理。
[Abstract]:Objective to investigate the CT and MRI features of ovarian fibroma. Methods the CT and MRI data of 42 cases of ovarian fibroma proved by operation and pathology were retrospectively analyzed. Results in 42 cases of ovarian fibroma, 29 cases were simple type, 11 cases were degenerative type, and 2 cases were special type. The tumors were all single, round, round or lobular, with clear boundary in 40 cases, partial blurring in 2 cases, calcification in 3 cases. Hemorrhage occurred in 1 case. The maximum diameter of the tumor was 1.4 ~ 26.7 cm, with a median value of 5.5 cm. Simple CT plain scan showed low signal intensity on T1WI and T2WI, and degenerative CT showed patchy pattern and high signal intensity in fissure-like low-density area on T1WI and T2WI. Contrast enhanced scan showed little or little enhancement in the tumor parenchyma, and a large amount of hemorrhage was found in 1 case of special type, all of which were misdiagnosed as malignant tumor. Conclusion CT and MRI findings of ovarian fibroma have some characteristics. But the diagnosis still depends on pathology.
【作者单位】：舟山市妇幼保健院放射科;舟山市中医院放射科;浙江大学医学院附属妇产科医院放射科;
【分类号】：R445.2;R730.44;R737.31

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