mature teratoma

(redirected from benign teratoma)

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 ?
In fact, several theories exist; one of them suggests that benign teratoma is derived from the region of the third bronchial cleft or pouch.
9] Age and size are predictors of malignant transformation in benign teratoma.
Calcification on the rim of tumour or inside the tumour is seen in 53-62% of teratomas and although radiologically three quarters of patients with a benign teratoma may have calcification within it, a quarter of malignant cases may also demonstrate calcification.
Days after the April 24 surgery, doctors discovered that the cyst was actually a benign teratoma.
A rule of thumb: If a bizarre adnexal structure with no vascularity is visible on US, and if it is cystic or solid in appearance (or both), benign teratoma should be included in the differential diagnosis.
Germ cell tumors represent 15% of anterior mediastinal masses, with an even higher share in children, and include benign teratoma, seminomas, and nonseminomatous germ cell tumors?
Most solid neck masses in children are benign, including fibromatosis colli, inflammatory adenopathy, hemangioma of infancy, neurofibroma, and benign teratoma.
Immature teratomas are rarely found bilaterally, while it is common to find benign teratoma in the contralateral ovary.
Benign teratomas represent about a quarter of all ovarian neoplasms.
Benign teratomas are predominantly cystic, and contain mature tissue including fat, calcification and a small volume of solid soft tissue.