卵巢纤维卵泡膜瘤及纤维瘤的CT诊断

CT diagnosis of fibrothecoma and fibroma of the ovary

目的 探讨卵巢纤维卵泡膜瘤及纤维瘤的CT表现特点 ,提高术前诊断率。方法分析经手术病理证实的 12例纤维卵泡膜瘤和 2例纤维瘤的临床和CT资料。结果 14例肿瘤中 ,发生在绝经后 10例 ,伴有腹水 7例。实性 10例 ,囊性及囊实性各 2例。肿瘤呈圆形或椭圆形 9例 ,分叶或不规则形 5例。所有肿瘤边缘均清楚。CT表现 :实性肿瘤和囊实性肿瘤的实性部分及其囊壁平扫时与子宫肌对比呈等密度 ,增强后无强化或有轻度强化 ,密度明显低于子宫肌 ;密度欠均匀者瘤内见浅淡的斑片状、索条状低密度区 ;囊性或囊实性肿瘤的囊、实部分界限清晰 ,可见壁结节。

Objective To describe the CT characteristics and improve pre operative diagnosis of fibrothecoma and fibroma of the ovary.Methods The clinical and CT image material of 14 postmenopausal patients with pathologically confirmed fibrothecoma or fibroma of the ovary were reviewed.Results Of the 14 cases, 7 had ascites. The tumor was solid in 10 cases, cystic or cystic solid in 2 cases. It was round or elliptic in 9 cases, multilobular or irregular in shape in 5. In all cases, the tumors had clear border. On CT imaging, the solid tumor, the solid part of the cystic solid tumor, and the cystic wall were similar in density to that of myometrium on precontrast scanning. There was no or slight uptake on postcontrast enhancement, the density of which was obviously lower than that of myometrium. In tumors heterogeneous in density, low density areas of light flakes or streaks were observed. In cystic or cystic solid tumors, the demarcation between the cystic and solid portion was clear. Nodules on cystic wall were visible.Conclusion CT is useful in the diagnosis of the fibrothecoma and fibroma of the ovary.