teratoma


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Related to teratoma: Sacrococcygeal teratoma

teratoma

 [ter″ah-to´mah]
a type of germ cell tumor made up of a number of different types of tissue from one or more of the germ cell layers; it is usually found in the ovary or testis and may be either benign or malignant.
malignant teratoma a solid, malignant ovarian tumor resembling a dermoid cyst but composed of immature embryonal or extraembryonal elements derived from all three germ layers.

ter·a·to·ma

(ter'ă-tō'mă),
A type of germ cell tumor composed of multiple tissues, including tissues not normally found in the organ in which it arises. Teratomas occur most frequently in the ovary, where they are usually benign and form dermoid cysts; in the testis, they are usually malignant; and, uncommonly, in other sites, especially the midline of the body.
Synonym(s): teratoid tumor
[terato- + G. -oma, tumor]

teratoma

(tĕr′ə-tō′mə)
n. pl. terato·mas or terato·mata (-mə-tə)
A tumor consisting of different types of tissue, as of skin, hair, and muscle, caused by the development of independent germ cells.

ter′a·to′ma·tous (-tō′mə-təs) adj.

teratoma

A tumour derived from the multipotent cells of more than one primitive embryonic layer (ectoderm, endoderm, mesoderm), which differs in prognosis according to the organ involved and degree of maturation of the tissues; teratomas are most common in the mediastinum, ovary and testicle, but may occur in the urogenital tract and various solid organs.

ter·a·to·ma

(ter'ă-tō'mă)
A neoplasm composed of multiple tissues, including tissues not normally found in the organ in which it arises. Teratomas occur most frequently in the ovary, where they are usually benign and form dermoid cysts; in the testis, where they are usually malignant; and, uncommonly, in other sites, especially the midline of the body.
Synonym(s): teratoid tumor.
[terato- + G. -oma, tumor]

teratoma

A tumour formed from germ cells showing various degrees of differentiation. Most teratomas occur in the ovaries or testicles. Some teratomas are benign, some malignant.

ter·a·to·ma

(ter'ă-tō'mă)
Type of germ cell tumor composed of multiple tissues, including tissues not normally found in the organ in which it arises.
[terato- + G. -oma, tumor]
References in periodicals archive ?
Panageas, "General diagnosis case of the day: primary retroperitoneal teratoma," American Journal of Roentgenology, vol.
Tumors may be benign or malignant [22], of which teratoma is one of the diagnoses.
Under the impression of peritonitis due to ruptured teratoma, the patient was admitted for further examination and surgical treatment.
It was a cystic-cloisonned well circumscribed tumour, showing thick cloisons; this aspect was highly suggestive of a teratoma more than a cystic lymphangioma.
We reported 25% malignant ovarian neoplasms and 19.44% cases of ovarian teratoma. Killacky et al [18] and Couto et al [15] reported 20% and 19.4% malignant ovarian neoplasms in their studies.
According to the (https://www.canteen.org.au/cancer-information/cancer-types/germ-cell-tumours/ovarian-germ-cell-tumour/) Canteen , the common symptoms of teratoma are:
--Diagnostico del teratoma congenito: En la Clasificacion Internacional de las Enfermedades para Oncologia (icd-o) y la Nomencla tura Sistematizada de Medicina (snomed) los teratomas se incluyen dentro de los tumores de celulas germinales (tcg), son neoplasias derivadas de las celulas germinales primordiales que en la vida embrionaria migran desde el sistema nervioso central primitivo hasta localizarse en las gonadas (29).
torsion 16 - Multicystic mass - Swiss cheese appearance (Teratoma?) Follow- Case up No Operation Pathology Met time 1 HSO JGCT - - HSO JGCT - - Frozen biopsy: EST/ JGCT 2 HSO JGCT - 5 years 3 ?
To conclude, cephalad extension of anterior mediastinal teratoma is an unusual presentation.
Sacrococcygeal teratoma (SCT) is an unusual tumour located at the base of the tailbone (coccyx) of a newborn.
With neural and epithelial components, the mass was diagnosed as a monophasic teratoma, with secondary heterophilic and granulomatous inflammation.
The teratoma cancer could not be treated by chemotherapy or radiation, meaning surgery was the only option.