Abstract: CT and MRI can differentiate benign adnexal masses from malignant adnexal masses as well as inflammatory masses，but MRI is superior to CT. In this paper，the classification of adnexal mass， imaging characteristics of benign，malignant and inflammatory masses，and the differentiation features are discussed. Moreover，CT and MRI play a key role in staging malignant ovarian tumors and diagnosing adnexal torsion. It is expected that CT and MRI can provide precise information on the diagnosis and treatment of adnexal mass.

Key words: adnexal mass, CT, MRI, imaging findings, stage

摘要： CT和MRI能区分附件良恶性包块、炎性包块，但MRI更有优势。文章讨论了附件包块分类；常见卵巢良、恶性肿瘤及炎性包块的影像学特点和鉴别要点；CT和MRI在卵巢恶性肿瘤分期、附件扭转中的重要诊断价值。期待借助于CT和MRI，为附件包块的诊治提供精准的支持。

关键词: 附件包块, 计算机断层摄影术, 磁共振成像, 影像学表现, 分期