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Korean Journal of Obstetrics & Gynecology 2001;44(9):1711-1714.
Published online September 1, 2001.
A Case of Duplication of Chromosome 9q(q13-q21.3) as Polymorphism in Fetus of Patient with Habitual Abortion.
Dong Sun Lee, Joo Yeon Chung, Eun Young Choi, Hae Rim Lee, Eun Ju Park, Sung Hoon Kim, Eul Ju Seo, Dae Joon Cheon, Hee Dong Chae, Chung Hoon Kim, Byung Moon Kang
1Department of Obstetrics and Gynecology, University of Ulsan, Asan Medical Center, Seoul, Korea.
2Department of Clinical Pathology, College of Medicine, University of Ulsan, Asan Medical Center, Seoul, Korea.
3Department of Obstetrics and Gynecology, College of Medicine, Ulsan University Hospital, Ulsan, Korea.
Habitual abortion or recurrent pregnancy loss has been defined as the occurrence of three or more clinically recognized pregnancy loss before 20 gestational weeks. A recognized cause of habitual abortion is a genetic abnormality, and karyotyping of couples will reveal that about 5% have some abnormality, most frequently a balanced translocation. However, it has been reported that duplication of chromosome is a rare condition associated with habitual abortion. We have experienced a case of chromosomal duplication 9q as polymorphism found in fetus of the patient with habitual abortion. Father of the fetus also has the same chromosomal duplication on 9q. This represents familial polymorphism and it is very rare variant. We presented with brief review of literatures.
Key Words: Habitual abortion, Duplication of chromosome 9q, Polymorphism
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