PMID- 36088060 OWN - NLM STAT- MEDLINE DCOM- 20220913 LR - 20220913 IS - 1875-6263 (Electronic) IS - 1028-4559 (Linking) VI - 61 IP - 5 DP - 2022 Sep TI - Progressive increase of the mosaic level for 45,X in 45,X/46, XX at different amniocenteses and postnatal progressive decrease of the 45,X cell line in a mosaic 45,X/46, XX fetus with a favorable outcome. PG - 876-879 LID - S1028-4559(22)00223-6 [pii] LID - 10.1016/j.tjog.2022.07.003 [doi] AB - OBJECTIVE: We present progressive increase of the mosaic level for 45,X in 45,X/46, XX at different amniocenteses and postnatal progressive decrease of the 45,X cell line in a mosaic 45,X/46, XX fetus with a favorable outcome. CASE REPORT: A 35-year-old, primigravid woman underwent amniocentesis at 16 weeks of gestation because of the advanced maternal age. Amniocentesis revealed a karyotype of 45,X [6]/46,XX [14]. Among 20 colonies of cultured amniocytes, six colonies had a karyotype of 45,X, whereas the other 14 colonies had a karyotype of 46,XX. Simultaneous array comparative genomic hybridization (aCGH) on uncultured amniocytes revealed the result of arr [GRCh37] (X) x 1 [0.42] (1-22) x 2. Prenatal ultrasound findings were unremarkable. Repeat amniocentesis at 33 weeks of gestation revealed a karyotype of 45,X [13]/46,XX [7]. Among 20 colonies of cultured amniocytes, 13 colonies had a karyotype of 45,X, whereas the other seven colonies had a karyotype of 46,XX. Simultaneous interphase fluorescence in situ hybridization (FISH) analysis on 100 uncultured amniocytes revealed that 44 cells had monosomy X consistent with 44% mosaicism for 45,X, whereas the rest cells had disomy X. At 38 weeks of gestation, a 2675-g phenotypically normal female baby was delivered. The karyotypes of cord blood, umbilical cord and placenta were 45,X [12]/46,XX [28], 45,X [12]/46,XX [28] and 46,XX [40/40], respectively. When follow-up at age three months, the neonate was normal in development. The karyotypes of peripheral blood was 45,X [4]/46,XX [36], and interphase FISH analysis on 100 buccal mucosal cells showed monosomy X in 11 cells consistent with 11% mosaicism for 45,X, whereas the rest cells had disomy X. CONCLUSION: Progressive increase of the mosaic level for 45,X in 45,X/46, XX at different amniocenteses can be associated with a favorable outcome and postnatal progressive decrease of the 45,X cell line. 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; Department of Medical Laboratory Science and Biotechnology, Asia University, Taichung, 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 - 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 - Chen, Wen-Lin AU - Chen WL 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 - Cell Line MH - Comparative Genomic Hybridization MH - Female MH - Fetus MH - Humans MH - In Situ Hybridization, Fluorescence MH - Mosaicism MH - Pregnancy MH - *Turner Syndrome OTO - NOTNLM OT - 45,X mosaicism OT - 45,X/46,XX OT - Amniocentesis OT - Mosaic turner syndrome COIS- Declaration of competing interest The authors have no conflicts of interest relevant to this article. EDAT- 2022/09/11 06:00 MHDA- 2022/09/14 06:00 CRDT- 2022/09/10 21:05 PHST- 2022/07/06 00:00 [accepted] PHST- 2022/09/10 21:05 [entrez] PHST- 2022/09/11 06:00 [pubmed] PHST- 2022/09/14 06:00 [medline] AID - S1028-4559(22)00223-6 [pii] AID - 10.1016/j.tjog.2022.07.003 [doi] PST - ppublish SO - Taiwan J Obstet Gynecol. 2022 Sep;61(5):876-879. doi: 10.1016/j.tjog.2022.07.003.