目的 分析卵巢性索间质肿瘤的 CT表现并与病理结果进行对照，探讨其诊 断价值。方法 回顾性分析我院2014年5月 至2016年2月收治的21例经病理检查确诊 为卵巢性索间质肿瘤患者的CT及病理资 料，分析其特点。结果 21例患者均为单 侧肿瘤，左侧11例，右侧7例，3例向上侵 入下腹部；其中卵泡膜细胞瘤9例，颗粒 细胞瘤5例，纤维瘤2例，间质细胞瘤4例, 支持-间质细胞瘤1例；肿瘤直径为1.9- 14.8cm，平均(7.69±2.24)cm，肿瘤均为 规则或欠规则的卵圆形，大部分边界清 楚；卵泡膜细胞瘤以实性为主，实性肿块 有轻度强化，囊实性或囊性肿块无强化， 1例肿块内可见显著强化的纤细肿瘤血管 影；颗粒细胞瘤以囊实性为主，均呈低密 度影，增强扫描显示肿块密度不均匀，有 轻、中等强化；纤维瘤均为实性肿块，伴 有变性区域，内有片状低密度区域，增强 扫描可见轻度强化；间质细胞瘤均为实性 肿块，均呈低密度影，增强扫描均无强 化；支持-间质细胞瘤为实性肿块，密度 均匀，呈低密度影，增强扫描轻度强化； 2例患者伴腹腔积液。结论 卵巢性索间质 肿瘤可根据CT表现判断肿瘤部位、性质、 大小等，准确性较高，但确诊还应以病检 结果为金标准。

Objective To explore the CT diagnosis and pathological correlation of ovarian sex cord stromal tumors. Methods Retrospective analysis of CT and pathologic materials was carried out in 21 patients with ovarian sex gonad stromal tumor which confirmed by pathological examination, characteristics were analyzed. Results A total of 21 patients were unilateral tumors, 11 cases on left side, 7 cases on right side, 3 cases invaded to lower abdominal cavity, among them, 9 cases were theca cell tumor, 5 cases were granular cell tumor, 2 cases of fibroid tumor, 4 cases were leydig's cell tumor, 1 case was androblastoma. The tumor diameter were 1.9 to 14.8cm, with the the average of (7.69±2.24) cm, tumors were regular or irregular orbicular-ovate, most had clear boundary. Most theca cell tumors were solid, solid mass had mild enhancement, no enhancement in cystic and solid or cystic mass, fine tumor vascular shadow with significant enhancement could be seen in 1 case, most granular cell tumors were cystic and solid with low density, and had inhomogeneous light to mild enhancement. Fibrocellular tumors were solid mass with degeneration area, within a patchy low density area, enhanced scan showed mild enhancement. Leydigs cell tumors were solid mass and low density shadow, no reinforcement in enhanced scan; androblastoma were solid mass with even density, showed low density shadow, enhanced scan were mild enhancement. 2 patients were complicated with pyoperitoneum. Conclusion The location, property and size of ovarian sex cord stromal tumors can be judged according to CT findings, the accuracy is high, but the diagnosis should be based on the pathological results as the gold standard.