纤维卵泡膜细胞瘤和卵巢纤维瘤的临床特点及MRI诊断  

Clinical characteristics and MRI diagnosis of fibrothecoma and ovarian fibroma

作　　者：张翼 刘乐[2] ZHANG Yi;LIU Le(Medical Imaging Center,Northzeest Women's and Children's Hospital,Xi'an 710061,China;Department of Radiology,the Second Affiliated Hospital of Xi'an Jiaotong University,Xi'an 710004,China)

机构地区：[1]西北妇女儿童医院医学影像中心,陕西西安710061 [2]西安交通大学第二附属医院影像科,陕西西安710004

出　　处：《实用放射学杂志》2024年第5期764-767,共4页Journal of Practical Radiology

摘　　要：目的分析纤维卵泡膜细胞瘤和卵巢纤维瘤的临床特点及MRI表现,探讨MRI的诊断及鉴别诊断价值。方法回顾性分析经手术病理证实的纤维卵泡膜细胞瘤26例以及卵巢纤维瘤9例的MRI表现。结果纤维卵泡膜细胞瘤平均年龄(44.8±13.0)岁,卵巢纤维瘤平均年龄(48.3±17.7)岁,二者的绝经组和未绝经组例数和平均年龄无统计学差异。26例纤维卵泡膜细胞瘤中单侧病灶25例(96.2%),双侧病灶1例(3.8%);卵巢纤维瘤均为单侧病灶(100%)。纤维卵泡膜细胞瘤病灶长径平均(7.69±4.12)cm,以实性为主(88.9%);卵巢纤维瘤病灶长径平均(5.24±2.30)cm,均为实性(100%)。纤维卵泡膜细胞瘤T_(1)WI上肿块实性成分以等信号为主(100%),T_(2)WI上以等低信号为主(63.0%);卵巢纤维瘤T_(1)WI上以等信号为主(77.8%),T_(2)WI上以等低信号为主(77.8%)。在T_(2)WI图像上,40.7%纤维卵泡膜细胞瘤和55.6%卵巢纤维瘤可见“石榴籽征”、“玫瑰花瓣征”或“扭曲线样征”。纤维卵泡膜细胞瘤表观扩散系数(ADC)值约(1.55±0.32)×10^(-3)mm^(2)/s,卵巢纤维瘤ADC值约(1.15±0.18)×10^(-3)mm^(2)/s,二者差异有统计学意义。结论纤维卵泡膜细胞瘤和卵巢纤维瘤是以实性为主的肿瘤,T_(2)WI上“石榴籽征”、“玫瑰花瓣征”或“扭曲线样征”具有一定特征性,ADC值有助于二者鉴别。Objective To analyze the clinical features and MRI manifestations of fibrothecoma and ovarian fibroma,and to explore the value of MRl in diagnosis and differential diagnosis of these two tumors.Methods The MRI manifestations of 26 fibrothecomas and 9 ovarian fibromas confirmed by surgery and pathology were analyzed retrospectively.Results The mean age of patients with fibrothecomas was(44.8±13.0)years old,and the mean age of patients with ovarian fibromas was(48.3±17.7)years old.There were no statistical differences in the number and mean age of menopausal group and premenopausal group.There were 25 cases(96.2%)of unilateral lesions and 1 case(3.8%)of bilateral lesions in 26 cases of fibrothecomas.All ovarian fibromas were unilateral lesions(100%).The average length of all fibrothecomas was(7.69±4.12)cm,and the lesions were mainly solid(88.9%).The average length of all ovarian fibromas was(5.24±2.30)cm,and the lesions were all solid(100%).On T_(1)WI,the solid components of fibrothecomas were mainly isointensity(10o%)and were mainly iso-and hypointensity on T_(2)WI(63.0%).The solid components of ovarian fibromas were mainly isointensity on T_(1)WI(77.8%)and were mainly iso-and hypointensity on T2WI(77.8%).On T2WI,the"pomegranate seed-like","rosette-like",and"twisted wire-like"were found in 40.7%of fibrothecomas and 55.6%of ovarian fibromas.The apparent diffusion coefficient(ADC)values of fibrothecomas and ovarian fibromas were about(1.55±0.32)×10^(-3)mm^(2)/s vs(1.15±0.18)×10^(-3)mm^(2)/s,which showed statistical difference.Conclusion Fibrothecomas and ovarian fibromas are mainly solid tumors.The"pomegranate seed-like","rosette-like",and"twisted wire-like"on T_(2)WI are characteristic manifestations and ADC value is helpful to distinguishthetwo tumors.

关 键 词：卵巢 纤维卵泡膜细胞瘤 纤维瘤 磁共振成像 

分 类 号：R737.71[医药卫生—肿瘤] R445.2[医药卫生—临床医学]