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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.
Teratoma including mature teratoma, dermoid cyst, immature teratoma, teratoma with malignant transformation 9080/0-9080/3 0–3, 15–30 Mature teratoma, dermoid cyst usually benign (but follow-up required); others usually malignant Very variable, but "normal" tissues are common Pure tumors do not secrete hCG, AFP Polyembryoma: 9072/3 15–25 ? ? ?
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 . [ 7 ]
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A mature teratoma is a grade 0 teratoma. They are highly variable in form and histology, and may be solid, cystic, or a combination of the two. A mature teratoma often contains several different types of tissue such as skin, muscle, and bone. Skin may surround a cyst and grow abundant hair (see: § Dermoid cyst). Mature teratomas generally are ...
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The combined approach of ultrasound with Doppler, along with the selective use of contrast-enhanced MRI, proves to be an efficient diagnostic method for identifying benign adnexal masses with distinctive features, including functional masses, dermoid, endometrioma, fibroma, pedunculated fibroid, hydrosalpinx, and peritoneal inclusion cysts. [18]
Immature teratoma: 2.5%: 100%: A teratoma that contains anaplastic immature elements, and is often synonymous with malignant teratoma. [8] Other germ cell tumors 3.0%: Others mainly include dysgerminoma, yolk sac tumor, struma ovarii and squamous cell carcinoma arising from a dermoid cyst, and malignant mixed germ cell tumor. [5] Surface ...