J Korean Pediatr Soc.
2000 Sep;43(9):1274-1278.
A Case of Mosaic Tetrapaloidy
- Affiliations
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- 1Department of Pediatrics, College of Medicine, Wonkwang University School, Iksan, Korea.
- 2Department of Obstetrics, College of Medicine, Wonkwang University School, Iksan, Korea.
- 3Department of Anatomy, College of Medicine, Wonkwang University School, Iksan, Korea.
- 4Department of Radiology, College of Medicine, Wonkwang University School, Iksan, Korea.
Abstract
- Tetraploidy of human chromosome(92, XXYY) has been described very rarely. Liveborn infant with tetraploidy was reported in only 17 cases(complete 7 cases, mosaicism 10 cases) in the world, and no cases have been reported in Korea. The diploid-tetraploid mosaicism could arise during the early mitosis of the zygote. In one blastomeric cell, the chromosomes replicate but the cytoplasrn does not divide. We report a case of live infant with mosaic tetraploidy detected in lymphocyte(30%) and amniotic cell culture(25%), who presented with multiple congenital anomalies. A brief review of the literature is included.
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