Meaning of TERATOMA
 WordNet Dictionary |
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| | Definition: | | [n] a tumor consisting of a mixture of tissues not normally found at that site |
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| | See Also: | | neoplasm, tumor, tumour | |
| Webster's 1913 Dictionary |
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| | Definition: | | \Ter`a*to"ma\, n. [NL., fr. Gr. ?, ?, monster + -oma.]
(Med.)
A tumor, sometimes found in newborn children, which is made
up of a heterigenous mixture of tissues, as of bone,
cartilage and muscle.
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| Medical Dictionary |
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| | Definition: | | A type of germ cell tumor that may contain several different types of tissue, such as hair, muscle, and bone. Teratomas occur most often in the ovaries in women, the testicles in men, and the tailbone in children. Not all teratomas are malignant. |
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| Biology Dictionary |
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| | Definition: | | A teratoma is a rare congenital tumor derived from embryonic germ cells. These tumors are most often found in the ovaries and testes. These tumors, which can be benign or malignant, contain cells and/or differentiated tissues that should not be found in the organ they afflict. For instance, a cancerous ovarian teratoma might contain skin cells, cartilage, and lung tissue; a cystic benign ovarian teratoma (also called a dermoid cyst) is made up of epithelial tissues and often contains hair and teeth. These tumors are most often found in children and adolescents, although they may develop later in life. |
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