卵巢内膜样癌的MRI和MRS分析

目的 探讨卵巢内膜样癌的病理结构特点与MRI和MRS表现的相关性.资料与方法 对9例经病理证实的子宫内膜样癌的大体形态、结构特点,MRI的信号特征、增强后的强化方式和程度, MRS反映的肿瘤代谢表现进行回顾性分析.结果 9例卵巢内膜样癌中,发生于左侧卵巢6例,右侧卵巢3例,其中2例合并子宫内膜癌.9例肿瘤均呈圆形或类圆形实质性肿块, T1WI呈等信号,T2WI呈略高信号,增强后呈明显强化.MRS显示肿瘤的胆碱复合物(Cho)代谢浓度明显增高.结论 卵巢内膜样癌多呈实质性肿块,与卵巢表面上皮来源性囊腺性肿瘤多呈囊实性不同,MRS显示肿瘤Cho浓度的升高可进一步明确肿瘤的恶性程度,与肿瘤的分化程度具有明显的相关性.

The Evaluation of MR Imaging and MR Spectroscopy in the Ovarian Endometrioid Carcinoma

Objective To evaluate magnetic resonance imaging (MRI) and MR spectroscopy (MRS) correlated with pathology. Materials and Methods MRI and MRS findings in nine patients with ovarian endometrioid carcinomas confirmed by pathology were reviewed retrospectively. Results Of 9 patients, the tumor was found in the left ovary in 6 cases and in the right ovary in 3 patients with two cases associated with the endometrial carcinoma. All ovarian endometriod carcinomas showed round or ovoid solid lesions with isointensity on T1-weighted imaging and slightly hyperintensity on T2-weighted imaging and remarked enhancement after contrast administration. MRS revealed elevation of the peak of the choline. Conclusion Most ovarian endometrioid carcinomas were solid tumors with the elevated peak of choline obtained by MRS suggesting the degree of malignant neoplasms.