Polyembryoma
A rare malignant germ cell tumor characterized by predominant composition of embryoid bodies consisting of a central core of embryonal carcinoma cells an amnion-like cavity and a yolk sac tumor component. The tumor usually occurs as the dominant component of a mixed germ cell tumor with teratoma being the most common associated element. It may manifest as an abdominal mass or with abdominal pain menstrual irregularities or precocious puberty in women while men typically present with testicular enlargement. Serum alpha-fetoprotein and/or beta-human chorionic gonadotropin can be elevated.
Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview.
Reference: Access aggregated data from Orphanet at Orphadata.
Orphadata: Free access data from Orphanet. © INSERM 1999. Available on http://www.orphadata.org. Data version April 2024
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Polyembryoma?
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