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O varian cysts

O varian cysts. This photo shows mesodermal derivatives such as smooth muscle and cartilage and endodermal derivative such as gastrointestinal epithelium. Immature Malignant Teratomas.

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O varian cysts

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  1. Ovarian cysts

  2. This photo shows mesodermal derivatives such as smooth muscle and cartilage and endodermal derivative such as gastrointestinal epithelium.

  3. Immature Malignant Teratomas • These are rare tumors that differ from benign teratomas in that the component tissue resembles that observed in the fetus or embryo. • The tumor is found chiefly in prepubertal adolescents and young women. • Immature teratomas grow rapidly and frequently penetrate the capsule with local spread or metastases.

  4. Immature teratoma

  5. Monodermal or Specialized Teratomas • The specialized teratomas are a remarkable, rare group of tumors, the most common of which are strumaovarii. • Struma ovarii is composed entirely of mature thyroid tissue. Interestingly, these thyroidal neoplasms may hyperfunction, causing hyperthyroidism.

  6. Ovarian cysts

  7. * Types: I. Neoplastic: • Cystic teratoma (dermoid cyst). • Cystic serous tumors. • Cystic mucinous tumors. II. Non-neoplastic: 1. Follicular cysts. 2. Corpus luteum cyst. 3. Chocolate cysts. 4. Theca lutein cysts. 5. Polycystic ovary (stein-leventhal syndrome).

  8. 1. Follicular cysts: • Bilateral, single or multiple small cysts due to dilatation of atretic follicles.

  9. Follicular cysts

  10. Follicular cyst

  11. 2. Corpus luteum cyst: • A single large cyst, arising from the corpus luteum of menstruation or pregnancy.

  12. Corpus luteum cyst and follicular cysts Follicular cysts Corpus luteum cyst

  13. Corpus luteum cyst

  14. 3. Chocolate cysts: - Hemorrhagic cysts in case of ovarian endometriosis.

  15. 4. Theca lutein cysts: • Related to the action of hCG hormone of placenta on atretic follicles, so associated with placental tumors. • Bilateral, multiple, large cysts lined by lutenized theca cells.

  16. 5. Polycystic ovary disease (stein-leventhalsyndrome): • Affects 3% to 6% of women in reproductive period. • Bilateral, multiple small cysts, lined by luteinized theca cells. • They produce estrogen and androgen. • The patients suffer from persistent anovulation (infertility), oligomenorrhea, hirsutism. • The initiating event in polycystic ovarian disease is not clear. • Increased secretion of luteinizing hormone may stimulate the theca-lutein cells of the follicles, with excessive production of androgen.

  17. Polycystic ovary disease

  18. Thanks

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