Ovarian Teratoma

Usually benign, non-seminomatous GERM CELL TUMORS that originate from the ovary and are characterized by the presence of tissues which correspond to the different GERM LAYERS. Mature teratomas are composed of well differentiated, adult-type tissues. Immature teratomas are composed of immature, fetal type-tissues. They arise through failure of extrusion of the second POLAR BODY or refusion of it with the ovum. OMIM: 166950

Also Known As:

Teratoma, Ovarian; Dermoid Cyst, Ovarian

Neoplasms: 1324753
- Neoplasms by Site: 4
  - Endocrine Gland Neoplasms: 130
    - Ovarian Neoplasms: 39416
      - Ovarian Teratoma: 296
- Neoplasms by Histologic Type: 2
  - Germ Cell and Embryonal Neoplasms: 4454
    - Teratoma: 3316
      - Ovarian Teratoma: 296
Urogenital Diseases: 126
- Urogenital Neoplasms: 471
  - Female Genital Neoplasms: 105
    - Ovarian Neoplasms: 39416
      - Ovarian Teratoma: 296
- Genital Diseases: 114
  - Female Genital Diseases: 393
    - Adnexal Diseases: 60
      - Ovarian Diseases: 665
        Ovarian Neoplasms: 39416
        Ovarian Teratoma: 296
- Female Urogenital Diseases and Pregnancy Complications
  - Female Urogenital Diseases
    - Urogenital Neoplasms: 471
      - Female Genital Neoplasms: 105
        Ovarian Neoplasms: 39416
        Ovarian Teratoma: 296
    - Female Genital Diseases: 393
      - Adnexal Diseases: 60
        Ovarian Diseases: 665
        Ovarian Neoplasms: 39416
        Ovarian Teratoma: 296
Endocrine System Diseases: 968
- Endocrine Gland Neoplasms: 130
  - Ovarian Neoplasms: 39416
    - Ovarian Teratoma: 296
- Gonadal Disorders: 30
  - Ovarian Diseases: 665
    - Ovarian Neoplasms: 39416
      - Ovarian Teratoma: 296

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