新生儿及小婴儿卵巢囊肿的MRI诊断  

Diagnosis of MRI for Ovarian Cysts in the Newborns and Small Infants

作　　者：闫喆[1] 赵滨[1] 王春祥[1] YAN Zhe;ZHAO Bin;WANG Chunxiang(Department of Radiology,Tianjin Children's Hospital(Tianjin University Children's Hospital),Tianjin 300134,China)

机构地区：[1]天津市儿童医院(天津大学儿童医院)医学影像科,天津300134

出　　处：《中国医学影像学杂志》2021年第4期395-398,共4页Chinese Journal of Medical Imaging

摘　　要：目的分析新生儿及小婴儿卵巢囊肿的MRI表现及其诊断价值。资料与方法回顾性分析20例3月龄以下经手术病理证实的卵巢囊肿患儿,分析其MRI资料,并与手术病理进行对比,观察病灶大小、位置、囊壁及囊内信号特征、强化方式。对于疑似卵巢囊肿者,需注意病灶与子宫间的关系、双侧附件情况及腹盆腔有无渗出。结果本组患儿卵巢囊肿最大径3.1~10.5 cm,无固定位置,达中上腹者5例。MRI多表现为单房薄壁囊性包块;14例呈均匀长T1长T2信号,6例呈短T1信号;2例见液-液平面,增强扫描囊肿内部无强化。囊肿合并蒂扭转的MRI征象包括5例卵巢蒂无强化、5例囊肿高张力形态伴囊液短T1信号、4例囊肿周围串珠样小囊泡影像。结论MRI可评估新生儿及小婴儿卵巢囊肿及子宫、附件情况,提高对合并蒂扭转征象的认识有助于诊断本病及其并发症。Purpose To analyze the MRI findings and its diagnostic value for ovarian cysts in newborns and small infants.Materials and Methods A total of 20 children under 3-month-old with ovarian cysts confirmed by surgery and pathology was retrospectively analyzed.The MRI findings including the size and location of the lesion,the characteristics of the cyst wall and intra-capsular signal,and the enhancement method were analyzed and compared with pathology result.For patients with suspected ovarian cysts,attention should be paid to the relationship between the lesion and the uterus,bilateral accessories and situation of abdominal and pelvic exudation.Results For all children in this group,the maximum diameter of ovarian cysts was about 3.1-10.5 cm with free position,and lesions reached the middle and upper abdomen in 5 children.Most lesions showed single-chamber thin-walled cystic masses on MR imaging.There were 14 cases showed homogenous hypointensity on T1 weighted imaging and hyperintensity on T2 weighted imaging,6 cases showed hyperintensity on T1 weighted imaging,2 cases showed the liquid-liquid level.No enhancement was presented in the cystic lesions.MRI features of cyst pedicle torsion included no enhancement of the ovarian pedicle(5 cases),cyst hypertonic morphology with hyperintensity on T1 weighted imaging of cyst fluid(5 cases),and small beaded vesicles around the cyst(4 cases).Conclusion The conditions of ovarian cysts,uterus and appendages in newborns and small infants can be evaluated by MRI,improving the understanding of the signs of pedicle torsion and diagnosis of the disease and its complications.

关 键 词：卵巢囊肿 磁共振成像 新生儿 小婴儿 病理学 外科 

分 类 号：R737.31[医药卫生—肿瘤] R730.42[医药卫生—临床医学]