PMID- 35181023 OWN - NLM STAT- MEDLINE DCOM- 20220310 LR - 20220310 IS - 1875-6263 (Electronic) IS - 1028-4559 (Linking) VI - 61 IP - 1 DP - 2022 Jan TI - Molecular cytogenetic characterization of a de novo small supernumerary marker chromosome derived from chromosome 15 in a pregnancy with incidental detection of a maternal Robertsonian translocation of 45,XX,der(13;14) (q10;q10). PG - 132-134 LID - S1028-4559(21)00325-9 [pii] LID - 10.1016/j.tjog.2021.11.021 [doi] AB - OBJECTIVE: We present molecular cytogenetic characterization of a small supernumerary marker chromosome (sSMC) derived from chromosome 15 in a pregnancy with incidental detection of a maternal Robertsonian translocation of 45,XX,der(13; 14) (q10; q10). CASE REPORT: A 37-year-old, primigravid woman underwent amniocentesis at 16 weeks of gestation because of advanced maternal age. Amniocentesis revealed a karyotype of 47,XY,+mar. Simultaneous array comparative genomic hybridization (aCGH) analysis on the DNA extracted from uncultured amniocytes showed the result of no genomic imbalance or arr (1-22) x 2, (X,Y) x 1. Cytogenetic analysis of the parents showed a karyotype of 45,XX,der(13; 14) (q10; q10) in the mother and a karyotype of 46,XY in the father. Prenatal ultrasound was unremarkable. At 38 weeks of gestation, a 2790-g phenotypically normal male baby was delivered. The cord blood had a karyotype of 47,XY,+mar. Metaphase fluorescence in situ hybridization (FISH) analysis showed the result of +mar.ish dic(15) (D15Z1++, SNRPN-, PML-) (18/20). The extra chromosome was derived from chromosome 15. CONCLUSION: Metaphase FISH analysis is useful for the identification of the origin of an sSMC in the presence of no genomic imbalance at aCGH analysis. Prenatal diagnosis of a de novo sSMC may be associated with a Robertsonian translocation in the parents, and parental cytogenetic analysis is necessary under such a circumstance. 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. Electronic address: cpc_mmh@yahoo.com. FAU - Chen, Ming AU - Chen M AD - Department of Genomic Medicine, Department of Genomic Science and Technology, Changhua Christian Hospital Healthcare System, Changhua, Taiwan; Department of Obstetrics and Gynecology, Changhua Christian Hospital, Changhua, Taiwan; Department of Medical Science, National Tsing Hua University, Hsinchu, Taiwan; Department of Biomedical Science, Dayeh University, Changhua, Taiwan. FAU - Ma, Gwo-Chin AU - Ma GC AD - Department of Genomic Medicine, Department of Genomic Science and Technology, Changhua Christian Hospital Healthcare System, Changhua, Taiwan; Department of Biomedical Engineering, Chung Yuan Christian University, Taoyuan, Taiwan; Department of Medical Laboratory Science and Biotechnology, Central Taiwan University of Science and Technology, Taichung, Taiwan. FAU - Chang, Shun-Ping AU - Chang SP AD - Department of Genomic Medicine, Department of Genomic Science and Technology, Changhua Christian Hospital Healthcare System, Changhua, Taiwan. FAU - Chern, Schu-Rern AU - Chern SR AD - Department of Medical Research, MacKay Memorial Hospital, 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 - Lee, Meng-Shan AU - Lee MS 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 - 0 (Genetic Markers) SB - IM MH - Adult MH - Amniocentesis MH - Chromosomes, Human, Pair 15/*genetics MH - Comparative Genomic Hybridization MH - Cytogenetic Analysis MH - Female MH - Genetic Markers MH - Humans MH - In Situ Hybridization, Fluorescence/*methods MH - Incidental Findings MH - Male MH - *Mosaicism MH - Pregnancy MH - *Prenatal Diagnosis MH - *Translocation, Genetic OTO - NOTNLM OT - Chromosome 15 OT - Prenatal diagnosis OT - Robertsonian translocation OT - Small supernumerary marker chromosome COIS- Declaration of competing interest The authors have no conflicts of interest relevant to this article. EDAT- 2022/02/20 06:00 MHDA- 2022/03/11 06:00 CRDT- 2022/02/19 05:25 PHST- 2021/09/09 00:00 [accepted] PHST- 2022/02/19 05:25 [entrez] PHST- 2022/02/20 06:00 [pubmed] PHST- 2022/03/11 06:00 [medline] AID - S1028-4559(21)00325-9 [pii] AID - 10.1016/j.tjog.2021.11.021 [doi] PST - ppublish SO - Taiwan J Obstet Gynecol. 2022 Jan;61(1):132-134. doi: 10.1016/j.tjog.2021.11.021.