1 / 20

Ovarian tumors

Ovarian tumors. Dr. Abdelaty Shawky Dr. G ehan Mohamed. *Classification :. I . Tumors arising from the surface epithelium : Serous tumors: (benign , borderline, malignant). Mucinous tumors: (benign , borderline, malignant). II. Germ cell tumors: D ysgerminoma . Teratoma .

brina
Download Presentation

Ovarian tumors

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Ovarian tumors Dr. Abdelaty Shawky Dr. Gehan Mohamed

  2. *Classification: I. Tumors arising from the surface epithelium: • Serous tumors: (benign, borderline, malignant). • Mucinous tumors:(benign, borderline, malignant).

  3. II. Germ cell tumors: • Dysgerminoma. • Teratoma. • Yolk sac tumor. • Choriocarcinoma. • Embryonal carcinoma.

  4. III. Sex cord stromal tumors: • Granulosa cell tumor (benign or malignant):secretes estrogen, occurs in children causing precocious puberty and in adults causing endometrial hyperplasia. • Theca cell tumor (benign, rarely malignant): secretes estrogen, occurs in postmenopausal females. • Sertoli cell tumor: secretes estrogen • Leydig cell tumor: secretes androgen. • Ovarian fibroma.

  5. Serous Tumors • These common cystic neoplasms are lined by tall, columnar, ciliated epithelial cells and are filled with clear serous fluid. • Account for about 30% of all ovarian tumors. • Include; benign, borderline, and malignant types • About 75% are benign or of borderline malignancy, and 25% are malignant.

  6. Serous cystadenoma • Usually bilateral. • Reach a huge size. • On bisection, it is usually unilocular and filled with clear serous fluid.

  7. Serous cystadenoma

  8. Bilateral serous cystadenocarcinoma:

  9. Ovarian serous cystadenocarcinoma

  10. Mucinous Tumors • Account for about 25% of all ovarian neoplasms. • They occur principally in middle adult life and are rare before puberty and after menopause. • 80% are benign or borderline, and about 20% are malignant.

  11. Mucinous cystadenoma • Usually unilateral. • Reach a huge size. • On bisection, it is multilocular and filled with mucinous material.

  12. Mucinous cystadenoma

  13. Mucinous cystadenocarcinoma

  14. Mucinous cystadenocarcinoma

  15. Teratoma • Teratomas are divided into three categories. 1. Mature (benign). 2. Immature (malignant). 3. Monodermalor highly specialized.

  16. Mature (Benign) Teratomas. • Most benign teratomas are cystic and are termed dermoidcysts. • These neoplasms are presumably derived from the somatic differentiation of totipotential cells. • Cystic teratomas are usually found in young women.

  17. On histologic examination, the cyst wall is composed of stratified squamous epithelium with underlying sebaceous glands, hair shafts, and other skin adnexal structures. • In most cases, structures from other germ layers can be identified, such as cartilage, bone, thyroid tissue. * Behavior: - About 1% of the dermoids undergo malignant transformation.

  18. Dermoidcyst is filled with greasy material (keratin and sebaceous secretions) and shows tufts of hair

More Related