目 的 回顾性分析卵巢透 明 细 胞 癌 ( o v a r i a n c l e a r c e l l adenocarcinoma, OCCA)患者的多层螺旋 CT及MRI的影像特点。方法 回顾性分析 14例经病理检查确诊的OCCA患者临床资 料，均行CT及MRI检查，归纳其影像特 点。结果 14例患者均为囊实性混合型肿 块，多层螺旋CT平扫可见瘤体密度不均 匀，边界清晰，肿块内可见不规则团块 样实性成分或乳头状结节，增强扫描囊 性成分未见明显强化，实性成分动脉期 见中等强化、静脉期持续强化。MRI检查 见囊腔T1WI为低信号10例，等高信号4 例；囊腔T2WI均呈等高信号；实性成分 T1WI呈等低信号，T2WI则为稍高信号， DWI为高信号。结论 OCCA患者的多层螺 旋CT和MRI影像表现均具有一定特征性， 但缺乏明显的特异性，建议联合相关实 验室检查以提高术前诊断准确性，降低 误诊及漏诊风险。

Objective To retrospectively analyze the multi-slice spiral CT and magnetic resonance imaging (MRI) findings of patients with ovarian clear cell adenocarcinoma (OCCA). Methods The clinical data of 14 patients with pathologically confirmed OCCA were retrospectively analyzed. All patients underwent CT and MRI examination. The imaging findings were summarized. Results Fourteen cases of patients were with cystic mixed masses. Multi-slice spiral CT scan showed that the density of tumors was homogeneous, with clear boundaries, irregular mass-like solid components or papillary nodules in masses. Enhanced scan showed that cystic components were without obvious enhancement, and in arterial phase, the solid components were with presence of moderate enhancement and in venous phase with continuing enhancement. MRI examination showed low signal on cystic cavity T1WI in 10 cases and equal high signal in 4 cases; There was equal high signal on cystic cavity T2WI; The solid components showed equal low signal on T1WI, slightly high signal on T2WI and slightly high signal on DWI. Conclusion Multi-slice spiral CT and MRI findings of patients with OCCA have certain characteristics, but lack for obvious specificity. It is suggested that related laboratory examination be combined to improve the preoperative diagnostic accuracy and reduce the risk of misdiagnosis and missed diagnosis.