PMID- 34839516 OWN - NLM STAT- MEDLINE DCOM- 20211130 LR - 20211130 IS - 1003-9406 (Print) IS - 1003-9406 (Linking) VI - 38 IP - 12 DP - 2021 Dec 10 TI - [Genetic analysis of a recurrent abnormal pregnancy case caused by a cryptic reciprocal autosomal translocation]. PG - 1241-1244 LID - 10.3760/cma.j.cn511374-20200827-00627 [doi] AB - OBJECTIVE: To provide genetic counseling for a couple with recurrent detection of fetal structural abnormality during second trimester pregnancy. METHODS: The fetal tissue and peripheral blood samples of the couple were subjected to G banded chromosomal analysis, copy number variation sequencing (CNV-seq) and fluorescence in situ hybridization (FISH) assays. RESULTS: CNV-seq has detected a 6.59 Mb duplication at 7p22.3-p22.1 and a 3.81 Mb deletion at 4p16.3 in the fetal tissue, though conventional karyotyping results of both parents were normal. FISH has confirmed that the father has harbored a cryptic translocation of t(4;7)(7p+,4q+,4p+,7q+). CONCLUSION: The ultrasonographic abnormality of the fetuses may be attributed to the 7p microduplication and 4p microdeletion derived from the cryptic translocation carried by the father. Reciprocal translocation of tiny chromosomal segments should be suspected for couples with recurrent adverse pregnancies but apparently normal karyotypes. FAU - He, Tianrong AU - He T AD - Department of Medical Genetics, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China. yangyuan@scu.edu.cn. FAU - Tao, Dachang AU - Tao D FAU - Liu, Yunqiang AU - Liu Y FAU - Yang, Yuan AU - Yang Y LA - chi PT - Journal Article PL - China TA - Zhonghua Yi Xue Yi Chuan Xue Za Zhi JT - Zhonghua yi xue yi chuan xue za zhi = Zhonghua yixue yichuanxue zazhi = Chinese journal of medical genetics JID - 9425197 SB - IM MH - *Chromosome Disorders MH - *DNA Copy Number Variations MH - Female MH - Humans MH - In Situ Hybridization, Fluorescence MH - Karyotyping MH - Pregnancy MH - Translocation, Genetic EDAT- 2021/11/29 06:00 MHDA- 2021/12/01 06:00 CRDT- 2021/11/28 21:16 PHST- 2021/11/28 21:16 [entrez] PHST- 2021/11/29 06:00 [pubmed] PHST- 2021/12/01 06:00 [medline] AID - 940638258 [pii] AID - 10.3760/cma.j.cn511374-20200827-00627 [doi] PST - ppublish SO - Zhonghua Yi Xue Yi Chuan Xue Za Zhi. 2021 Dec 10;38(12):1241-1244. doi: 10.3760/cma.j.cn511374-20200827-00627.