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An immature teratoma is a teratoma that contains anaplastic immature elements, and is often synonymous with malignant teratoma. [1] 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.
Immature teratoma is the malignant counterpart of the mature teratoma and contains immature tissues which typically show primitive or embryonal neuroectodermal histopathology. Immature teratoma has one of the lowest rates of somatic mutation of any tumor type and results from one of five mechanisms of meiotic failure. [19]
Sacrococcygeal teratomas are benign 75% of the time, malignant 12% of the time, and the remainder are considered "immature teratomas" that share benign and malignant features. Benign sacrococcygeal teratomas are more likely to develop in younger children who are less than 5 months old, and older children are more likely to develop malignant ...
Immature teratomas contain immature or embryonic tissue which significantly differentiates them from mature teratomas as they carry dermoid cysts. [5] It is commonly observed in 15 to 19-year-old women and rarely in women after menopause. [6] Immature teratomas are characterized with a diameter of 14–25 cm, encapsulated mass, cystic areas ...
Mixed germ cell tumors occur in many forms. Among these, a common form is teratoma with endodermal sinus tumor. Teratocarcinoma refers to a germ cell tumor that is a mixture of teratoma with embryonal carcinoma, or with choriocarcinoma, or with both. [9]
World renowned Austrian neurologist Sigmund Freud introduces his theory on psychosexual development, which asserts that there is an immature clitoral orgasm and a mature vaginal orgasm. He states that the clitoris is the site for pre-pubescent orgasms but upon reaching puberty, healthy women should begin having vaginal orgasms instead.
10.1 Mature teratoma 10.2 Immature teratoma 10.3 Teratoma with somatic-type malignancy 10.4 Germinoma 10.5 Embryonal carcinoma 10.6 Yolk sac tumor 10.7 Choriocarcinoma
Broccoli has long been a dinnertime staple, loved for its versatility whether steamed, roasted, or stir-fried. But another green veggie, broccolini, has gained popularity as a more elegant-looking ...