CT and MR Imaging of ovarian tumors with emphasis on differential diagnosis
CT and MR Imaging of ovarian tumors with emphasis on differential diagnosis
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DOI：
10.1148/rg.226025033
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发表时间：
2002-11-01
期刊：
影响因子：
5.5
通讯作者：
Hahn, ST
中科院分区：
文献类型：
--
作者：
Jung, SE;Lee, JM;Hahn, ST
卵巢肿瘤根据肿瘤来源分为上皮性肿瘤（浆液性和粘液性肿瘤、卵巢样癌和透明细胞癌、Brenner肿瘤）、生殖细胞肿瘤（成熟和未成熟畸胎瘤、无性细胞瘤、内胚窦瘤、胚胎癌）、性索间质肿瘤（卵泡膜纤维瘤、颗粒细胞、硬化性间质和支持-间质细胞肿瘤）和转移性肿瘤。上皮性肿瘤主要为囊性，恶性时伴有不同比例的实性成分。乳头状突起是上皮肿瘤的一个独特特征。大量乳头状突起高度提示交界性（低恶性潜能）或恶性肿瘤。卵巢畸胎瘤在计算机断层扫描和磁共振（MR）成像中表现为脂质物质。恶性生殖细胞肿瘤表现为一个大的，复杂的腹部肿块，包含实体和囊性成分。肿瘤标志物有助于诊断。性索间质肿瘤的影像学表现从小的实性肿块到大的多囊性肿块不等。颗粒细胞瘤通常是大的多囊性肿块与实性成分。纤维鞘细胞瘤、硬化性间质瘤和支持-间质细胞瘤通常为实性肿块。纤维瘤在T2加权像上信号很低。每种类型的肿瘤都有一定的放射学表现。了解卵巢肿瘤的这些关键特征为做出特异性诊断或实质性缩小鉴别诊断提供了标准。(C)RSNA，2002年。
Ovarian tumors are classified on the basis of tumor origin as epithelial tumors (serous and mucinous tumors, endometrioid and clear cell carcinomas, Brenner tumor), germ cell tumors (mature and immature teratomas, dysgerminoma, endodermal sinus tumor, embryonal carcinoma), sex cord-stromal tumors (fibrothecoma; granulosa cell, sclerosing stromal, and Sertoli-Leydig cell tumors), and metastatic tumors. Epithelial tumors are primarily cystic and, when malignant, are associated with varying proportions of a solid component. Papillary projections are a distinctive feature of epithelial tumors. Profuse papillary projections are highly suggestive of borderline (low-malignant-potential) or malignant tumor. Ovarian teratomas demonstrate lipid material at computed tomography and magnetic resonance (MR) imaging. Malignant germ cell tumors manifest as a large, complex abdominal mass that contains both solid and cystic components. Tumor markers are helpful in diagnosis. The radiologic appearance of sex cord-stromal tumors varies from small solid masses to large multicystic masses. Granulosa cell tumors are usually large multicystic masses with solid components. Fibrothecoma, sclerosing stromal tumor, and Sertoli-Leydig cell tumors are usually solid masses. Fibromas have very low signal intensity on T2-weighted MR images. Certain radiologic findings predominate for each type of tumor. Knowledge of these key features of ovarian tumors provides the criteria for making a specific diagnosis or substantially narrowing the differential diagnosis. (C) RSNA, 2002.