CT Diagnosis and Differential Diagnosis of Ovarian Tumors
Radiology Practice 2000 Vol. 2 No. 15 Continuing Education Campus
Author: Xiejing Xia
Unit: Xie Jingxia (100083 Beijing, Department of Radiology, the Third Hospital of Beijing Medical University)
On the histopathological classification of ovarian tumors
Ovarian embryology, tissue anatomy and endocrine function are complex. There are many types of tumors. According to their organization, there are the following categories:
(1) epithelial-derived ovarian tumors: 1 ovarian serous tumors: benign serous cystadenoma, borderline serous cystadenoma, malignant serous cystadenocarcinoma, 2 ovarian mucinous tumors: benign mucinous cystadenoma, Borderline mucinous cystadenoma, malignant mucinous cystadenocarcinoma, and 3 ovarian endometrioid tumors: benign ovarian endometrioid cystadenomas, borderline ovarian endometrioid adenomas, malignant ovarian endometrioid adenocarcinoma, special tissues Type 4 Ovarian fibroepithelioma: benign fibroepithelial neoplasia, proliferative fibroepithelial neoplasia, malignant fibroepithelial neoplasia (Brenner tumor), 5 mixed epithelial neoplasms, 6 unclassifiable epithelial neoplasms, 7 undifferentiated carcinomas;
(2) Sex-interstitial-derived tumors: 1 Ovary granuloma-follicular cell tumor, 2 ovarian support-stromal cell tumor, 3 amphoteric blastoma, 4 sexual cable tumor with annular tubule;
(3) ovarian lipocytoma;
(4) Germ cell-derived tumors: ovarian dysgerminoma, embryonal carcinoma, endosinus carcinoma, non-pregnant primary choriocarcinoma of the ovary, polyembryoma, mixed germ cell tumor, and ovarian teratoma;
(5) Ovarian Blastoma;
(6) Tumors of non-specific stromal origin: 1 benign tumor: ovarian leiomyoma, ovarian fibroma, 2 malignant tumor: ovarian lymphoma;
(7) Miscellaneous or unclear tumors of unknown origin;
(8) Ovarian metastatic tumors: 1 metastatic signet-ring cell carcinoma (Krukenberg tumor) from digestive tract cancer, 2 metastatic ovarian cancer from other organs.
In addition, non-neoplastic cysts are also common in benign ovarian tumors. Including: simple cyst, follicular cyst, corpus luteum cyst, endometriosis cyst (chocolate cyst) and so on.
Pathological and CT Diagnosis of Common Ovarian Tumors
For a wide variety of ovarian tumors, the common features of these are the following: pathological and CT diagnostic features.
It is the basis of diagnosis to compare its pathological features with CT findings.