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Teratoma with trisomy 16 in a baboon (Papio hamadryas)

✍ Scribed by Charleen M. Moore; Jennifer McKeand; Shelly M. Witte; Gene B. Hubbard; Jeffrey Rogers; M. Michelle Leland

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 275 KB
Volume: 46
Category: Article
ISSN: 0275-2565
DOI: 10.1002/(sici)1098-2345(1998)46:4<323::aid-ajp4>3.0.co;2-b

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✦ Synopsis

A teratoma was found during a planned cesarean section in a 10-year-old primigravida baboon. This teratoma had a female sex chromosome complement and trisomy for chromosome 16. This is the first report of a teratoma in a baboon and the first report of a chromosomal abnormality in a nonhuman primate teratoma. It is also the first case in a nonhuman primate to address the mechanism of origin. Through the use of genetic markers from human chromosomes 5, 8 and 17, the origin of the teratoma was shown to be most consistent with failure of meiosis II or endoreduplication in a mature ovum, while the trisomy for chromosome 16 originated after the formation of the tumor. Am.

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