卵泡膜细胞瘤-纤维瘤组肿瘤影像学表现及病理相关性分析

Correlation between imaging characteristics and histopathology in the ovarian thecoma-fibroma

目的 探讨卵泡膜细胞瘤-纤维瘤组肿瘤的影像学表现.方法 回顾性分析25例卵泡膜细胞瘤-纤维瘤组患者的影像学资料.结果 25例患者共27个病灶,直径1.2～15.0 cm,平均6.9 cm.≥6 cm者以囊实性为主.边界清楚者26个,其中圆形、类圆形14个,分叶状9个,不规则形3个,边界不清1个.9例共10个病灶行CT扫描,平扫呈软组织密度.16例共17个病灶行MRI,T1WI均呈等稍低信号.T2WI压脂序列信号复杂,变化多且不均匀,T2WI稍高信号8个,等稍低信号7个,明显低信号2个.8个病灶内可见裂隙状高信号.7例行增强扫描,5例表现为轻至中度强化,1例强化明显,1例未见强化.结论 卵泡膜细胞瘤-纤维瘤组肿瘤影像学表现有一定特征性,可在一定程度上反映其病理成分,结合临床资料,有助于诊断及鉴别诊断.

Objective To explore the imaging characteristics of the ovarian thecoma-fibroma.Methods The clinical imaging characteristics of 25 patients with thecoma-fibroma were retrospectively analyzed. Results A total of 27 lesions were seen in 25 patients, and the maximum diameter of the tumors was 1.2 - 15.0 cm, with an average diameter of 6.9 cm. The tumors whose maximum diameter larger than 6 cm were mainly as cysticsolid. Twenty-six lesions were well-defined margin, and 14 lesions were round and oval masses, 9 lesions were lobulated masses, 3 lesions were irregular masses, and 1 lesion presented with unclear boundary. A total of 10 lesions in 9 cases were performed with CT scan, and the density was similar to uterine muscle density. In MRI scan of a total of 17 lesions of 16 cases, all lesions showed hypointensity on T1WI. On T2WI, 8 lesions showed slightly hyperintensity, 7 lesions appeared slight hypointensity, and 2 lesions appeared significantly hypointense. Eight lesions showed slit hyperintensity. Enhancement scanning was performed in seven cases. Five cases showed mild to moderate enhancement, 1 case was enhanced obviously, and 1 case was not strengthened. Conclusions The imaging findings of the ovarian thecoma-fibroma have somewhat features and can indirectly reflect pathology of tumor. Combined with the clinical data, imaging characteristics are is helpful to the diagnosis and differential diagnosis of the disease.