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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.
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 ...
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 ? ? ?
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.
Endodermal sinus tumor (EST) is a member of the germ cell tumor group of cancers. [1] It is the most common testicular tumor in children under three, [2] and is also known as infantile embryonal carcinoma. This age group has a very good prognosis.
An appropriate differential diagnosis depends upon location of the ectopic thymus. For cervical ectopic thymus, the differential diagnosis should include additional causes of neck masses. This includes common causes of neck masses in children, including: thyroglossal duct cyst. [6] [10] branchial cleft cyst. [10] dermoid cyst. [10]
Head and neck cancer is a general term encompassing multiple cancers that can develop in the head and neck region. These include cancers of the mouth, tongue, gums and lips ( oral cancer ), voice box ( laryngeal ), throat ( nasopharyngeal , oropharyngeal , [ 1 ] hypopharyngeal ), salivary glands , nose and sinuses .
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