PMID- 35779924 OWN - NLM STAT- MEDLINE DCOM- 20220706 LR - 20220706 IS - 1875-6263 (Electronic) IS - 1028-4559 (Linking) VI - 61 IP - 4 DP - 2022 Jul TI - High-level mosaicism for 45,X in 45,X/46, XY at amniocentesis in a pregnancy with a favorable fetal outcome and cytogenetic discrepancy in various tissues. PG - 695-699 LID - S1028-4559(22)00158-9 [pii] LID - 10.1016/j.tjog.2022.05.007 [doi] AB - OBJECTIVE: We present prenatal diagnosis of high-level mosaicism for 45,X by amniocentesis in a pregnancy with a favorable fetal outcome. CASE REPORT: A 35-year-old, gravida 2, para 1, woman underwent amniocentesis at 17 weeks of gestation because of advanced maternal age. Amniocentesis revealed a karyotype of 45,X[13]/46,XY[11]. Simultaneous array comparative genomic hybridization (aCGH) on uncultured amniocytes revealed the result of Yp11.3q11.21 x 0-1 [0.1], Yq11.21q11.23 x 0-1 [0.6]. At 19 weeks of gestation, she underwent the second amniocentesis which revealed a karyotype of 45,X[13]/46,XY[12], and aCGH and multiplex ligation-dependent probe amplification (MLPA) on uncultured amniocytes showed 37% mosaicism for Y-deleted cells. At 28 weeks of gestation, she underwent the third amniocentesis which revealed a karyotype of 45,X[25]/46,XY[25], and aCGH on uncultured amniocytes revealed the result of Yq11.21q11.23 x 0.5, Yq11.23q12 x 0.7. Interphase fluorescence in situ hybridization (FISH) analysis on uncultured amniocytes revealed that 16.67% (20/120 cells) were Y-deleted cells. The parental karyortypes and prenatal ultrasound were normal. At 37 weeks of gestation, a 2707-g phenotypically normal male baby was delivered with normal male external genitalia. The karyotypes of cord blood, umbilical cord and placenta were 45,X[25]/46,XY[15], 45,X[18]/46,XY[22] and 45,X[25]/46,XY[15], respectively. When follow-up at age five months, the neonate was normal in external genitalia and physical development. The peripheral blood had a karyotype of 45,X[29]/46,XY[11], and FISH analysis on 100 buccal mucosal cells showed no abnormal signals. When follow-up at age 11 months, the neonate was physically normal, and the peripheral blood had a karyotype of 45,X[17]/46,XY[23]. CONCLUSION: High-level mosaicism for 45,X in 45,X/46, XY at amniocentesis can be associated with a favorable fetal outcome despite the presence of cytogenetic discrepancy in various tissues. CI - Copyright (c) 2022. 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 - 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 - Lee, Chen-Chi AU - Lee CC AD - Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei, Taiwan. FAU - Pan, Chen-Wen AU - Pan CW 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 - 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 SB - IM MH - *Amniocentesis MH - Comparative Genomic Hybridization MH - Female MH - Humans MH - In Situ Hybridization, Fluorescence MH - Karyotyping MH - Male MH - *Mosaicism MH - Pregnancy OTO - NOTNLM OT - 45,X/46,XY OT - Amniocentesis OT - Mosaicism OT - Turner syndrome COIS- Declaration of competing interest The authors have no conflicts of interest relevant to this article. EDAT- 2022/07/03 06:00 MHDA- 2022/07/07 06:00 CRDT- 2022/07/02 21:04 PHST- 2022/05/12 00:00 [accepted] PHST- 2022/07/02 21:04 [entrez] PHST- 2022/07/03 06:00 [pubmed] PHST- 2022/07/07 06:00 [medline] AID - S1028-4559(22)00158-9 [pii] AID - 10.1016/j.tjog.2022.05.007 [doi] PST - ppublish SO - Taiwan J Obstet Gynecol. 2022 Jul;61(4):695-699. doi: 10.1016/j.tjog.2022.05.007.