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  2. Teratoma - Wikipedia

    en.wikipedia.org/wiki/Teratoma

    A "benign" grade 0 (mature) teratoma nonetheless has a risk of malignancy. Recurrence with malignant endodermal sinus tumor has been reported in cases of formerly benign mature teratoma, [37] [38] even in fetiform teratoma and fetus in fetu. [39] [40] Squamous cell carcinoma has been found in a mature cystic teratoma at the time of initial ...

  3. Ovarian germ cell tumors - Wikipedia

    en.wikipedia.org/wiki/Ovarian_Germ_Cell_Tumors

    Teratoma are most common germ cell tumor of ovary. Teratomas can be divided into two types: mature teratoma (benign) and immature teratoma (malignant). Immature teratomas contain immature or embryonic tissue which significantly differentiates them from mature teratomas as they carry dermoid cysts . [ 5 ]

  4. Immature teratoma - Wikipedia

    en.wikipedia.org/wiki/Immature_teratoma

    A teratoma is a tumor of germ cell origin, containing tissues from more than one germ cell line, [2] [3] [4] It can be ovarian or testicular in its origin. [4] and are almost always benign. [5] An immature teratoma is thus a very rare tumor, representing 1% of all teratomas, 1% of all ovarian cancers, and 35.6% of malignant ovarian germ cell ...

  5. Germ cell tumor - Wikipedia

    en.wikipedia.org/wiki/Germ_cell_tumor

    The most notable of these is sacrococcygeal teratoma, the single most common tumor diagnosed in babies at birth. [citation needed] Of all anterior mediastinal tumors, 15–20% are GCTs of which about 50% are benign teratomas. [10] Ovarian teratomas may be associated with anti-NMDA receptor encephalitis. [11]

  6. Ovarian tumor - Wikipedia

    en.wikipedia.org/wiki/Ovarian_tumor

    Ovarian tumors, or ovarian neoplasms, are tumors in the ovary. [1] Not all are ovarian cancer. [1] They consist of mainly solid tissue, while ovarian cysts contain fluid. [2]In 2020, the World Health Organization (WHO) divided ovarian tumours as 90% epithelial, 3% germ cell, and 2% sex cord-stromal types.

  7. Ovarian cancer - Wikipedia

    en.wikipedia.org/wiki/Ovarian_cancer

    Ovarian borderline tumors, sometimes called low malignant potential (LMP) ovarian tumors, have some benign and some malignant features. [29] LMP tumors make up approximately 10–15% of all ovarian tumors. [31] [71] They develop earlier than epithelial ovarian cancer, around the age of 40–49. They typically do not have extensive invasion; 10% ...

  8. Dermoid cyst - Wikipedia

    en.wikipedia.org/wiki/Dermoid_cyst

    A dermoid cyst is a teratoma of a cystic nature that contains an array of developmentally mature, solid tissues. It frequently consists of skin, hair follicles, and sweat glands, while other commonly found components include clumps of long hair, pockets of sebum, blood, fat, bone, nail, teeth, eyes, cartilage, and thyroid tissue.

  9. Struma ovarii - Wikipedia

    en.wikipedia.org/wiki/Struma_ovarii

    A struma ovarii (literally: goitre of the ovary) is a rare form of monodermal teratoma that contains mostly thyroid tissue, which may cause hyperthyroidism. [1]Despite its name, struma ovarii is not restricted to the ovary.