mature teratoma

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mature teratoma

A tumour that maintains an orderly arrangement, with well-differentiated ectodermal and mesodermal tissues surrounding endodermal components. Most mature teratomas have a cystic cavity lined by epithelial cells, and are typically filled with sebaceous secretions and hair. While they are usually benign, malignant degeneration in the form of squamous cell carcinoma are well described.
References in periodicals archive ?
Final pathology confirmed mature cystic teratoma with mostly squamous epithelial tissue and sebaceous material.
5) Mature cystic teratomas are the most common germ cell tumors found in the mediastinum, accounting for 52-75% of cases.
Squamous elements are most commonly identified in the ovary as part of a mature cystic teratoma (or dermoid cyst).
There were two serous cystadenomas, one mature cystic teratoma, one peritubular cyst, two simple cysts in one ovary, a right-side fibroid, and one case of severe adhesive disease.
Mature cystic teratoma and dermoid cyst are the most common ovarian neoplasm derived from germ cells constituting approximately 20% of all ovarian tumors.
The most common ovarian tumor is the mature cystic teratoma (dermoid cyst) which is usually hormonally inactive.
Usually, thyroid-type carcinoma arises from a pure form of struma ovarii; less frequently, it is associated with a mature cystic teratoma or is a component of strumal carcinoid.
Adjacent echogenic bowel can also be mistaken for a mature cystic teratoma and vice versa.
To the best of our knowledge, fine-needle aspiration biopsy of a mature cystic teratoma of the gut has not been previously reported in the English literature.
Dermoid cysts are mature cystic teratomas that may have components from 3 germ-cell layers that predominantly include mature ectoderm elements.
MRI can be extremely accurate in the diagnosis of benign lesions, such as mature cystic teratomas (containing fat), endometriomas (containing blood products), and nondegenerative leiomyomas in the adnexa.