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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 ]
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 ...
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]
A dysgerminoma is a type of germ cell tumor; [1] it usually is malignant and usually occurs in the ovary.. A tumor of the identical histology but not occurring in the ovary may be described by an alternate name: seminoma in the testis [2] or germinoma in the central nervous system or other parts of the body.
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 ...
Masses in the anterior portion of the mediastinum can include thymoma, lymphoma, pheochromocytoma, germ cell tumors including teratoma, thyroid tissue, and parathyroid lesions. Masses in this area are more likely to be malignant than those in other compartments.