PMID- 33966743 OWN - NLM STAT- MEDLINE DCOM- 20211020 LR - 20211020 IS - 1875-6263 (Electronic) IS - 1028-4559 (Linking) VI - 60 IP - 3 DP - 2021 May TI - Prenatal diagnosis of maternal uniparental disomy 16 associated with mosaic trisomy 16 at amniocentesis, and pericardial effusion and intrauterine growth restriction in the fetus. PG - 534-539 LID - S1028-4559(21)00078-4 [pii] LID - 10.1016/j.tjog.2021.03.027 [doi] AB - OBJECTIVE: We present prenatal diagnosis of maternal uniparental disomy (UPD) 16 associated with mosaic trisomy 16 at amniocentesis, and pericardial effusion and intrauterine growth restriction (IUGR) in the fetus. CASE REPORT: A 38-year-old woman underwent amniocentesis at 17 weeks of gestation because of advanced maternal age, and the result was 47,XX,+16[2]/46,XX[54]. Simultaneous array comparative genomic hybridization (aCGH) analysis on the DNA extracted from uncultured amniocytes revealed 14% mosaicism for trisomy 16 and a paternally inherited 319-kb microdeletion of 15q11.2 encompassing the genes of TUBGCP5, CYFIP1, NIPA2 and NIPA1. Prenatal ultrasound revealed persistent left superior vena cava, pericardial effusion and severe IUGR. Cordocentesis at 23 weeks of gestation revealed a karyotype of 46,XX, but polymorphic DNA marker analysis revealed maternal UPD 16. Repeat amniocentesis was performed at 27 weeks of gestation and revealed a karyotype of 46, XX in 21/21 colonies. Molecular cytogenetic analysis on uncultured amniocytes revealed 22.4% mosaicism (26/116 cells) for trisomy 16 on interphase fluorescence in situ hybridization (FISH) analysis, and 20% mosaicism for trisomy 16 on aCGH. Polymorphic DNA marker analysis on the DNAs extracted from uncultured amniocytes and parental bloods revealed maternal UPD 16. The pregnancy was subsequently terminated, and a fetus was delivered with facial dysmorphism and severe IUGR. The umbilical cord had a karyotype of 47,XX,+16[28]/46,XX[16]. Polymorphic DNA marker analysis on placenta confirmed a maternal origin of trisomy 16. CONCLUSION: Cytogenetic discrepancy between cultured amniocytes and uncultured amniocytes may present in mosaic trisomy 16 at amniocentesis. Prenatal diagnosis of mosaic trisomy 16 should alert the association of maternal UPD 16 which may be associated with congenital heart defects and severe IUGR on prenatal ultrasound. CI - Copyright (c) 2021. Published by Elsevier B.V. FAU - Chen, Chih-Ping AU - Chen CP AD - Department of Obstetrics and Gynecology, MacKay Memorial Hospital, Taipei, Taiwan; Department of Medical Research, MacKay Memorial Hospital, Taipei, Taiwan; School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan; Institute of Clinical and Community Health Nursing, National Yang Ming Chiao Tung University, Taipei, Taiwan; Department of Obstetrics and Gynecology, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Department of Medical Laboratory Science and Biotechnology, Asia University, Taichung, Taiwan. Electronic address: cpc_mmh@yahoo.com. FAU - Ko, Tsang-Ming AU - Ko TM AD - Genephile Bioscience Laboratory, Ko's Obstetrics and Gynecology, Taipei, Taiwan. FAU - Chern, Schu-Rern AU - Chern SR AD - Department of Medical Research, MacKay Memorial Hospital, Taipei, Taiwan. FAU - Wu, Peih-Shan AU - Wu PS AD - Gene Biodesign Co. Ltd, Taipei, Taiwan. FAU - Chen, Shin-Wen AU - Chen SW AD - Department of Obstetrics and Gynecology, MacKay Memorial Hospital, Taipei, Taiwan. FAU - Wu, Fang-Tzu AU - Wu FT AD - Department of Obstetrics and Gynecology, MacKay Memorial Hospital, Taipei, Taiwan. FAU - Chen, Yun-Yi AU - Chen YY AD - Department of Medical Research, MacKay Memorial Hospital, Taipei, Taiwan. FAU - Town, Dai-Dyi AU - Town DD AD - Department of Obstetrics and Gynecology, MacKay Memorial Hospital, Taipei, Taiwan. FAU - Chen, Li-Feng AU - Chen LF AD - Department of Obstetrics and Gynecology, MacKay Memorial Hospital, Taipei, Taiwan. FAU - Wang, Wayseen AU - Wang W AD - Department of Medical Research, MacKay Memorial Hospital, Taipei, Taiwan. LA - eng PT - Case Reports PL - China (Republic : 1949- ) TA - Taiwan J Obstet Gynecol JT - Taiwanese journal of obstetrics & gynecology JID - 101213819 RN - Chromosome 16, trisomy SB - IM MH - Abortion, Eugenic MH - Adult MH - *Amniocentesis MH - Chromosomes, Human, Pair 16/genetics MH - Comparative Genomic Hybridization MH - Cytogenetic Analysis MH - Female MH - Fetal Growth Retardation/*diagnosis/genetics MH - Humans MH - In Situ Hybridization, Fluorescence MH - Karyotype MH - Maternal Inheritance/genetics MH - Mosaicism/embryology MH - Pericardial Effusion/congenital/*diagnosis/embryology MH - Pregnancy MH - Trisomy/*diagnosis/genetics MH - Uniparental Disomy/*diagnosis/genetics MH - Vena Cava, Superior/diagnostic imaging/embryology OTO - NOTNLM OT - Amniocentesis OT - Intrauterine growth restriction OT - Mosaic trisomy 16 OT - Prenatal diagnosis OT - Uniparental disomy (UPD) 16 COIS- Declaration of competing interest The authors have no conflicts of interest relevant to this article. EDAT- 2021/05/11 06:00 MHDA- 2021/10/21 06:00 CRDT- 2021/05/10 06:02 PHST- 2021/02/09 00:00 [accepted] PHST- 2021/05/10 06:02 [entrez] PHST- 2021/05/11 06:00 [pubmed] PHST- 2021/10/21 06:00 [medline] AID - S1028-4559(21)00078-4 [pii] AID - 10.1016/j.tjog.2021.03.027 [doi] PST - ppublish SO - Taiwan J Obstet Gynecol. 2021 May;60(3):534-539. doi: 10.1016/j.tjog.2021.03.027.