Teratoma
germ cell and embryonal cancer that is an encapsulated tumor with tissue or organ components resembling normal derivatives of all three germ layers
A teratoma is a tumor made up of several types of tissue, such as hair, muscle, teeth, or bone. Teratomata typically form in the tailbone (where it is known as a sacrococcygeal teratoma), ovary, or testicle.
Symptoms
Symptoms may be minimal if the tumor is small. A testicular teratoma may present as a painless lump. Complications may include ovarian torsion, testicular torsion, or hydrops fetalis.
Cause and diagnosis
They are a type of germ cell tumor (a tumor that begins in the cells that give rise to sperm or eggs). They are divided into two types: mature and immature. Mature teratomas include dermoid cysts and are generally benign. Immature teratomas may be cancerous. Most ovarian teratomas are mature.
This brief starts where responsible research should: with the source description of “Teratoma” as germ cell and embryonal cancer that is an encapsulated tumor with tissue or organ components resembling normal derivatives of all three germ layers. Everything that follows is an evidence route, not borrowed authority.
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The subject matters to the general reference register because the source frames it as germ cell and embryonal cancer that is an encapsulated tumor with tissue or organ components resembling normal derivatives of all three germ layers. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Sep 7, 2026. The linked authority identifier is Q200741. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Teratoma” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.