卵巢性索间质肿瘤的CT诊断

目的探讨卵巢性索间质肿瘤的CT特点,以提高此类肿瘤的诊断水平。方法回顾性分析经手术病理证实的17例卵巢性索间质肿瘤的CT资料,分析其特点。结果 17例卵巢性素间质肿瘤中卵泡膜细胞瘤7例,纤维瘤5例,颗粒细胞瘤4例,纤维-卵泡膜细胞瘤1例。肿瘤形态呈类圆形或卵圆形,边缘清楚,其中实性为主肿瘤14例,囊实性3例;肿瘤大小在2.1～15.0cm之间,平均为8.7cm。CT平扫17例均呈软组织密度肿块,内可有散在小囊状低密度区,增强扫描肿瘤实质无强化或仅有轻微强化;有2例增强后肿瘤内见纤细血管影,其他合并腹腔积液7例,子宫内膜增生4例,子宫内膜癌2例,子宫肌瘤7例。结论卵巢性索间质肿瘤表现为边界清晰的实性肿块,CT表现具有一定的特征,结合患者的临床表现有助于提高这类肿瘤诊断准确率,但确诊仍需要依靠病理。

CT Diagnosis of Ovarian Sex Cord-stromal Tumor

Objective To study the CT manifestations of ovarian sex cord-stromal tumor,and to improve the diagnostic level for this tumor.Methods CT data of ovarian sex cord-stromal tumor in 17 cases proved by surgery and pathology were analyzed retrospectively.Results Of the 17 ovarian sex cord-stromal tumor,7 cases were ovarian thecoma,5 cases were fibromas,4 cases were granulose tumor and 1 case was fibroma-thecoma.The tumors were nearly round or elliptic,borders clear.Among them,14 cases were solid tumors,3 cases were cystic.The size of the tumors ranged from 2.1-15.0cm,and the average size was 8.7cm.17 cases of CT manifestations were density of soft tissue masses,and scattered cystic of low-density area.Those tumors had no enhancement or enhanced slightly.Two cases showed the slim vessel after enhanced,and other were associated with ascites(n=7),endometrial hyperplasia(n=4),endometrial carcinoma(n=2),hysteromyoma(n=7).Conclusion The manifestations of ovarian sex cord-stromal tumor were borders clear of solid masses.It possesses characteristic features.Although CT combined with the clinical manifestations of patient could improve the diagnostic accuracy,but diagnosis also needed pathology.