1
|
Li L, Liu X, Li Q, Zhang L, Xiong Y, Liu S, Wang H, Zhu H, Zhang X. Case report: Prenatal diagnosis of rare chromosome mosaicism: discordant results between chorionic villi and amniotic fluid samples. Front Genet 2023; 14:1165019. [PMID: 37342772 PMCID: PMC10277675 DOI: 10.3389/fgene.2023.1165019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 05/22/2023] [Indexed: 06/23/2023] Open
Abstract
Objective: We described a unique case of near-negative chromosome mosaicism in chorionic villi but complete monosomy X in amniotic fluid. Methods: Chorionic villus sampling and amniocentesis were performed separately in the first and second trimesters. Chromosomal microarray (CMA) and rapid aneuploidy detection (QF-PCR and FISH) were performed on placental villi and uncultured amniotic fluid. After pregnancy termination, the placenta, umbilical cord, and fetal muscle tissues were sampled for FISH detection. Results: The CMA revealed a lower signal from chromosome X in chorionic villi, with a copy number of 1.85, implying the presence of mosaic monosomy X. However, the QF-PCR and FISH results were nearly normal. In uncultured amniotic fluid, CMA and rapid aneuploidy detection indicated complete monosomy X. Across different sampling points on the aborted fetus, the FISH results varied from normal, to mosaic, and then complete monosomy X. Conclusion: This case presents a rare and complex situation where sampling from uncultured chorionic villi indicated low-level chromosome mosaicism, while sampling from amniotic fluid revealed complete monosomy X. Although some of these discordant outcomes may be due to methodological limitations, we conclude that prenatal consultation should be combined with fetal ultrasound phenotype and genetic testing for a comprehensive evaluation of fetal genetic abnormalities.
Collapse
Affiliation(s)
- Lingping Li
- Department of Medical Genetics and Prenatal Diagnosis Center, West China Second University Hospital, Sichuan University, Chengdu, China
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - Xijing Liu
- Department of Medical Genetics and Prenatal Diagnosis Center, West China Second University Hospital, Sichuan University, Chengdu, China
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - Qinqin Li
- Department of Medical Genetics and Prenatal Diagnosis Center, West China Second University Hospital, Sichuan University, Chengdu, China
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - Lili Zhang
- Department of Medical Genetics and Prenatal Diagnosis Center, West China Second University Hospital, Sichuan University, Chengdu, China
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - Yueyue Xiong
- Department of Medical Genetics and Prenatal Diagnosis Center, West China Second University Hospital, Sichuan University, Chengdu, China
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - Shanling Liu
- Department of Medical Genetics and Prenatal Diagnosis Center, West China Second University Hospital, Sichuan University, Chengdu, China
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - He Wang
- Department of Medical Genetics and Prenatal Diagnosis Center, West China Second University Hospital, Sichuan University, Chengdu, China
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - Hongmei Zhu
- Department of Medical Genetics and Prenatal Diagnosis Center, West China Second University Hospital, Sichuan University, Chengdu, China
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - Xuemei Zhang
- Department of Medical Genetics and Prenatal Diagnosis Center, West China Second University Hospital, Sichuan University, Chengdu, China
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| |
Collapse
|
2
|
Zhang Y, Lei Q, Liu J, Lin M, Luo L, Li T, Wang Q, Zhou C. Selective growth of mosaic cells in chromosomal analysis of chorionic villi by conventional karyotyping. Mol Cell Probes 2020; 51:101532. [DOI: 10.1016/j.mcp.2020.101532] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 02/01/2020] [Accepted: 02/09/2020] [Indexed: 10/25/2022]
|
3
|
Bhatt RK. Chorionic Villus Sampling. JOURNAL OF FETAL MEDICINE 2017. [DOI: 10.1007/s40556-017-0115-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
4
|
Massalska D, Zimowski JG, Bijok J, Pawelec M, Czubak-Barlik M, Jakiel G, Roszkowski T. First trimester pregnancy loss: Clinical implications of genetic testing. J Obstet Gynaecol Res 2016; 43:23-29. [DOI: 10.1111/jog.13179] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Accepted: 08/21/2016] [Indexed: 01/26/2023]
Affiliation(s)
- Diana Massalska
- I Department of Obstetrics and Gynecology; Professor Witold Orlowski Clinical Hospital, Centre of Postgraduate Medical Education; Warsaw Poland
| | | | - Julia Bijok
- I Department of Obstetrics and Gynecology; Professor Witold Orlowski Clinical Hospital, Centre of Postgraduate Medical Education; Warsaw Poland
| | - Magdalena Pawelec
- Department of Genetics; Institute of Psychiatry and Neurology; Warsaw Poland
| | - Małgorzata Czubak-Barlik
- Department of Pathology; Professor Witold Orlowski Clinical Hospital, Centre of Postgraduate Medical Education; Warsaw Poland
| | - Grzegorz Jakiel
- I Department of Obstetrics and Gynecology; Professor Witold Orlowski Clinical Hospital, Centre of Postgraduate Medical Education; Warsaw Poland
| | - Tomasz Roszkowski
- I Department of Obstetrics and Gynecology; Professor Witold Orlowski Clinical Hospital, Centre of Postgraduate Medical Education; Warsaw Poland
| |
Collapse
|
5
|
Srebniak MI, de Wit MC, Diderich KEM, Govaerts LCP, Joosten M, Knapen MFCM, Bos MJ, Looye-Bruinsma GAG, Koningen M, Go ATJI, Galjaard RJH, Van Opstal D. Enlarged NT (≥3.5 mm) in the first trimester - not all chromosome aberrations can be detected by NIPT. Mol Cytogenet 2016; 9:69. [PMID: 27610202 PMCID: PMC5015200 DOI: 10.1186/s13039-016-0279-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Accepted: 08/26/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Since non-invasive prenatal testing (NIPT) in maternal blood became available, we evaluated which chromosome aberrations found in our cohort of fetuses with an enlarged NT in the first trimester of pregnancy (tested with SNP microarray) could be detected by NIPT as well. METHOD 362 fetuses were referred for cytogenetic testing due to an enlarged NT (≥3.5 mm). Chromosome aberrations were investigated using QF-PCR, karyotyping and whole genome SNP array. RESULTS After invasive testing a chromosomal abnormality was detected in 137/362 (38 %) fetuses. 100/362 (28 %) cases concerned trisomy 21, 18 or 13, 25/362 (7 %) an aneuploidy of sex chromosomes and 3/362 (0.8 %) triploidy. In 6/362 (1.6 %) a pathogenic structural unbalanced chromosome aberration was seen and in 3/362 (0.8 %) a susceptibility locus for neurodevelopmental disorders was found. We estimated that in 2-10 % of fetuses with enlarged NT a chromosome aberration would be missed by current NIPT approaches. CONCLUSION Based on our cohort of fetuses with enlarged NT we may conclude that NIPT, depending on the approach, will miss chromosome aberrations in a significant percentage of pregnancies. Moreover all abnormal NIPT results require confirmatory studies with invasive testing, which will delay definitive diagnosis in ca. 30 % of patients. These figures are important for pretest counseling enabling pregnant women to make informed choices on the prenatal test. Larger cohorts of fetuses with an enlarged NT should be investigated to assess the additional diagnostic value of high resolution array testing for this indication.
Collapse
Affiliation(s)
- Malgorzata I Srebniak
- Department of Clinical Genetics, Erasmus Medical Center, Wytemaweg 80, 3015 CN Rotterdam, The Netherlands
| | - Merel C de Wit
- Department of Obstetrics and Gynecology, Erasmus Medical Center, Wytemaweg 80, 3015 CN Rotterdam, The Netherlands
| | - Karin E M Diderich
- Department of Clinical Genetics, Erasmus Medical Center, Wytemaweg 80, 3015 CN Rotterdam, The Netherlands
| | - Lutgarde C P Govaerts
- Department of Clinical Genetics, Erasmus Medical Center, Wytemaweg 80, 3015 CN Rotterdam, The Netherlands
| | - Marieke Joosten
- Department of Clinical Genetics, Erasmus Medical Center, Wytemaweg 80, 3015 CN Rotterdam, The Netherlands
| | - Maarten F C M Knapen
- Department of Obstetrics and Gynecology, Erasmus Medical Center, Wytemaweg 80, 3015 CN Rotterdam, The Netherlands ; Foundation Prenatal Screening Southwest region of The Netherlands, Wytemaweg 80, Na-1509, 3015 CN Rotterdam, The Netherlands
| | - Marnix J Bos
- Department of Clinical Genetics, Erasmus Medical Center, Wytemaweg 80, 3015 CN Rotterdam, The Netherlands
| | - Gerda A G Looye-Bruinsma
- Department of Clinical Genetics, Erasmus Medical Center, Wytemaweg 80, 3015 CN Rotterdam, The Netherlands
| | - Mieke Koningen
- Department of Clinical Genetics, Erasmus Medical Center, Wytemaweg 80, 3015 CN Rotterdam, The Netherlands
| | - Attie T J I Go
- Department of Obstetrics and Gynecology, Erasmus Medical Center, Wytemaweg 80, 3015 CN Rotterdam, The Netherlands
| | - Robert Jan H Galjaard
- Department of Clinical Genetics, Erasmus Medical Center, Wytemaweg 80, 3015 CN Rotterdam, The Netherlands
| | - Diane Van Opstal
- Department of Clinical Genetics, Erasmus Medical Center, Wytemaweg 80, 3015 CN Rotterdam, The Netherlands
| |
Collapse
|
6
|
Van Opstal D, Srebniak MI. Cytogenetic confirmation of a positive NIPT result: evidence-based choice between chorionic villus sampling and amniocentesis depending on chromosome aberration. Expert Rev Mol Diagn 2016; 16:513-20. [DOI: 10.1586/14737159.2016.1152890] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Diane Van Opstal
- Department of Clinical Genetics, Erasmus Medical Center, Rotterdam, the Netherlands
| | | |
Collapse
|
7
|
Van Opstal D, Srebniak MI, Polak J, de Vries F, Govaerts LCP, Joosten M, Go ATJI, Knapen MFCM, van den Berg C, Diderich KEM, Galjaard RJH. False Negative NIPT Results: Risk Figures for Chromosomes 13, 18 and 21 Based on Chorionic Villi Results in 5967 Cases and Literature Review. PLoS One 2016; 11:e0146794. [PMID: 26771677 PMCID: PMC4714811 DOI: 10.1371/journal.pone.0146794] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Accepted: 12/22/2015] [Indexed: 11/21/2022] Open
Abstract
Non-invasive prenatal testing (NIPT) demonstrated a small chance for a false negative result. Since the “fetal” DNA in maternal blood originates from the cytotrophoblast of chorionic villi (CV), some false negative results will have a biological origin. Based on our experience with cytogenetic studies of CV, we tried to estimate this risk. 5967 CV samples of pregnancies at high risk for common aneuplodies were cytogenetically investigated in our centre between January 2000 and December 2011. All cases of fetal trisomy 13, 18 and 21 were retrospectively studied for the presence of a normal karyotype or mosaicism < 30% in short-term cultured (STC-) villi. 404 cases of trisomies 13, 18 and 21 were found amongst 5967 samples (6,8%). Of these 404 cases, 14 (3,7%) had a normal or low mosaic karyotype in STC-villi and therefore would potentially be missed with NIPT. It involved 2% (5/242) of all trisomy 21 cases and 7.3% (9/123) of all trisomy 18 cases. In 1:426 (14/5967) NIPT samples of patients at high risk for common aneuploidies, a trisomy 18 or 21 will potentially be missed due to the biological phenomenon of absence of the chromosome aberration in the cytotrophoblast.
Collapse
Affiliation(s)
- Diane Van Opstal
- Department of Clinical Genetics, Erasmus Medical Center, Rotterdam, the Netherlands
- * E-mail:
| | | | - Joke Polak
- Department of Clinical Genetics, Erasmus Medical Center, Rotterdam, the Netherlands
| | - Femke de Vries
- Department of Clinical Genetics, Erasmus Medical Center, Rotterdam, the Netherlands
| | | | - Marieke Joosten
- Department of Clinical Genetics, Erasmus Medical Center, Rotterdam, the Netherlands
| | - Attie T. J. I. Go
- Department of obstetrics and prenatal medicine, Erasmus Medical Center, Rotterdam, the Netherlands
| | - Maarten F. C. M. Knapen
- Department of obstetrics and prenatal medicine, Erasmus Medical Center, Rotterdam, the Netherlands
- Stichting Prenatale Screening Zuidwest Nederland, Wytemaweg 80, 3015 CN, Rotterdam, the Netherlands
| | - Cardi van den Berg
- Department of Clinical Genetics, Erasmus Medical Center, Rotterdam, the Netherlands
| | - Karin E. M. Diderich
- Department of Clinical Genetics, Erasmus Medical Center, Rotterdam, the Netherlands
| | | |
Collapse
|
8
|
Malvestiti F, Agrati C, Grimi B, Pompilii E, Izzi C, Martinoni L, Gaetani E, Liuti MR, Trotta A, Maggi F, Simoni G, Grati FR. Interpreting mosaicism in chorionic villi: results of a monocentric series of 1001 mosaics in chorionic villi with follow-up amniocentesis. Prenat Diagn 2015. [DOI: 10.1002/pd.4656] [Citation(s) in RCA: 99] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Francesca Malvestiti
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays S.p.A.; Busto Arsizio VA Italy
| | - Cristina Agrati
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays S.p.A.; Busto Arsizio VA Italy
| | - Beatrice Grimi
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays S.p.A.; Busto Arsizio VA Italy
| | - Eva Pompilii
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays S.p.A.; Busto Arsizio VA Italy
- GYNEPRO; V.le Carducci, 2/3 Bologna Italy
| | - Claudia Izzi
- UO Diagnosi Prenatale; Azienda Ospedaliera Spedali Civili; Brescia Italy
| | - Lorenza Martinoni
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays S.p.A.; Busto Arsizio VA Italy
| | - Elisa Gaetani
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays S.p.A.; Busto Arsizio VA Italy
| | - Maria Rosaria Liuti
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays S.p.A.; Busto Arsizio VA Italy
| | - Anna Trotta
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays S.p.A.; Busto Arsizio VA Italy
| | - Federico Maggi
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays S.p.A.; Busto Arsizio VA Italy
| | - Giuseppe Simoni
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays S.p.A.; Busto Arsizio VA Italy
| | - Francesca Romana Grati
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays S.p.A.; Busto Arsizio VA Italy
| |
Collapse
|
9
|
Srebniak MI, Diderich KEM, Noomen P, Dijkman A, de Vries FAT, van Opstal D. Abnormal non-invasive prenatal test results concordant with karyotype of cytotrophoblast but not reflecting abnormal fetal karyotype. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2014; 44:109-111. [PMID: 24585494 DOI: 10.1002/uog.13334] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2013] [Revised: 01/30/2014] [Accepted: 01/31/2014] [Indexed: 06/03/2023]
Abstract
We present a unique case in which non-invasive and invasive prenatal diagnoses showed abnormal, but discordant, results. A patient with abnormal non-invasive prenatal test (NIPT) results, indicating a 99% risk for monosomy X, was referred to our center for genetic counseling and confirmatory studies. Cytogenetic analysis of uncultured mesenchymal core of chorionic villi (CV) revealed a mosaic male karyotype consisting of two abnormal cell lines: one with monosomy X and the other with an isodicentric chromosome Y. Array analysis of the trophoblast confirmed the NIPT results. Based on the CV results, the patient opted for termination of pregnancy. After extensive counseling by a clinical geneticist about the possible outcomes and by a gynecologist about the risk of a second-trimester abortion procedure, the patient agreed to undergo early amniocentesis. Amniocentesis confirmed that the fetus had a male karyotype with an isodicentric chromosome Y, and the single nucleotide polymorphism (SNP) array profile suggested absence of the monosomy X cell line. The male infant was expected to be infertile. The patient finally decided to continue the pregnancy. Our case confirms that NIPT results are comparable with those of short-term cultured CV investigating the cytotrophoblast. Our patient was not aware that the NIPT results reveal the placental karyotype, which sometimes may be different from the fetal karyotype. Pretest counseling and providing the risk figures for false-positive and false-negative NIPT results are of great importance in order to discourage women from terminating pregnancies based on NIPT results alone.
Collapse
Affiliation(s)
- M I Srebniak
- Department of Clinical Genetics, Erasmus Medical Center, Rotterdam, The Netherlands
| | | | | | | | | | | |
Collapse
|
10
|
Battaglia P, Baroncini A, Mattarozzi A, Baccolini I, Capucci A, Spada F, Pompilii E, Pittalis MC. Cytogenetic follow-up of chromosomal mosaicism detected in first-trimester prenatal diagnosis. Prenat Diagn 2014; 34:739-47. [PMID: 24633594 DOI: 10.1002/pd.4358] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Revised: 03/05/2014] [Accepted: 03/08/2014] [Indexed: 11/11/2022]
Abstract
OBJECTIVE To contribute to the risk assessment of true fetal mosaicism after detection of a mosaic chromosomal anomaly in chorionic villus samples (CVS) in order to enable more effective counseling and pregnancy management. METHODS We retrospectively reviewed 7112 consecutive CVS analyzed on both direct preparations and cultured cells. In 135 out of the 177 cases of mosaicism, we performed cytogenetic follow-up and determined the frequency of confined placental mosaicism (CPM) and true fetal mosaicism according to type and distribution of the cytogenetic abnormality. RESULTS True fetal mosaicism was detected in 38 out of 135 cases (28.15%), confirming the higher incidence of CPM (71.85%). Confirmation rate of CV mosaicism depends on the combination of placental cell lineages affected, chromosome involved and mosaic versus non-mosaic chromosomal anomaly. The overall probability of fetal involvement significantly rises with involvement of mesenchymal cells: 5.88% abnormal cytotrophoblast, 20.96% abnormal mesenchyme and 58.97% anomalies in both tissues. CONCLUSION Most of the mosaic findings at CVS are unreliable indicators of the fetal karyotype. Our study contributes to large series with cytogenetic information from the different tissues along the cytotrophoblast-extraembrional mesoderm-fetus axis in order to infer clinical relevance of the findings and to enable more effective genetic counseling.
Collapse
Affiliation(s)
- Paola Battaglia
- Unit of Medical Genetics, S. Maria della Scaletta Hospital, Imola, Italy
| | | | | | | | | | | | | | | |
Collapse
|
11
|
Grati FR, Malvestiti F, Grimi B, Gaetani E, Di Meco AM, Trotta A, Liuti R, Chinetti S, Dulcetti F, Ruggeri AM, Agrati C, Frascoli G, Milani S, De Toffol S, Martinoni L, Paganini S, Marcato L, Maggi F, Simoni G. QF-PCR as a substitute for karyotyping of cytotrophoblast for the analysis of chorionic villi: advantages and limitations from a cytogenetic retrospective audit of 44,727 first-trimester prenatal diagnoses. Prenat Diagn 2013; 33:502-8. [DOI: 10.1002/pd.4099] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Francesca R. Grati
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays; Busto Arsizio VA Italy
| | - Francesca Malvestiti
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays; Busto Arsizio VA Italy
| | - Beatrice Grimi
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays; Busto Arsizio VA Italy
| | - Elisa Gaetani
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays; Busto Arsizio VA Italy
| | - Anna Maria Di Meco
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays; Busto Arsizio VA Italy
| | - Anna Trotta
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays; Busto Arsizio VA Italy
| | - Rosaria Liuti
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays; Busto Arsizio VA Italy
| | - Sara Chinetti
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays; Busto Arsizio VA Italy
| | - Francesca Dulcetti
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays; Busto Arsizio VA Italy
| | - Anna Maria Ruggeri
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays; Busto Arsizio VA Italy
| | - Cristina Agrati
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays; Busto Arsizio VA Italy
| | - Giuditta Frascoli
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays; Busto Arsizio VA Italy
| | - Silvia Milani
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays; Busto Arsizio VA Italy
| | - Simona De Toffol
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays; Busto Arsizio VA Italy
| | - Lorenza Martinoni
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays; Busto Arsizio VA Italy
| | - Silvia Paganini
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays; Busto Arsizio VA Italy
| | - Livia Marcato
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays; Busto Arsizio VA Italy
| | - Federico Maggi
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays; Busto Arsizio VA Italy
| | - Giuseppe Simoni
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays; Busto Arsizio VA Italy
| |
Collapse
|
12
|
Caloone J, Sanlaville D, Fichez A, Abel C, Huissoud C, Rudigoz RC. [Trisomy 21 by isochromosome: a case report of true false negative of chorionic villi sampling]. ACTA ACUST UNITED AC 2011; 39:e77-80. [PMID: 22079744 DOI: 10.1016/j.gyobfe.2011.07.054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2011] [Accepted: 07/28/2011] [Indexed: 10/15/2022]
Abstract
We report a rare case of true false negative of chorionic villi sampling for a child with Down syndrome. A chorionic villi sampling was performed for a nuchal translucency at the first trimester. The karyotype was 46,XX for the short and the long-term culture. Because of facial dysmorphy and cardiopathy to the child, a karytoype was proposed. This postnatal karyotype showed a trisomy 21, by isochromosome 46,XX,i(21)(q10). We expose the mechanism of true false negative of chorionic villi sampling, and particularly the role of isochromosome in this case.
Collapse
Affiliation(s)
- J Caloone
- Service de gynécologie-obstétrique, hôpital de la Croix-Rousse, hospices civils de Lyon, 103, grande rue de la Croix-Rousse, 69317 Lyon cedex 04, France.
| | | | | | | | | | | |
Collapse
|
13
|
Maya I, Davidov B, Gershovitz L, Zalzstein Y, Taub E, Coppinger J, Shaffer LG, Shohat M. Diagnostic utility of array-based comparative genomic hybridization (aCGH) in a prenatal setting. Prenat Diagn 2011; 30:1131-7. [PMID: 20925131 DOI: 10.1002/pd.2626] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE Array-based comparative genomic hybridization (aCGH) is a new technique for detecting submicroscopic deletions and duplications. There is limited information regarding its use in the prenatal setting. Here, we present our experience of 269 prenatal aCGHs between 2006 and 2009. METHOD The indications for testing were fetal anomalies on ultrasound (U/S), advanced maternal age (AMA), family history of a disorder of unknown etiology, parental concern, abnormal routine karyotype and abnormal serum biochemical screening for common fetal aneuploidies. RESULTS Of 15 cases with a known abnormal karyotype, 11 had a normal aCGH. This enabled us to reassure the families and the pregnancies were continued. The remaining four showed an abnormal aCGH, confirming the chromosomes were unbalanced, and were terminated. Of 254 cases with a normal karyotype, 3 had an abnormal aCGH and were terminated. Overall, new clinically relevant results were detected by aCGH in 18 cases, providing additional information for prenatal genetic counseling and risk assessment. CONCLUSION Our results suggest that prenatal aCGH should be offered particularly in cases with abnormal U/S. We found the rate of detecting an abnormality by aCGH in low-risk pregnancies was 1:84, but larger studies will be needed to expand our knowledge and validate our conclusions.
Collapse
Affiliation(s)
- Idit Maya
- The Raphael Recanati Genetic Institute, Rabin Medical Center, Beilinson Hospital, Petah Tikva, Israel.
| | | | | | | | | | | | | | | |
Collapse
|
14
|
Application of touch FISH in the study of mosaic tetraploidy and maternal cell contamination in pregnancy losses. J Assist Reprod Genet 2010; 27:657-62. [PMID: 20676750 DOI: 10.1007/s10815-010-9460-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2010] [Accepted: 07/21/2010] [Indexed: 10/19/2022] Open
Abstract
PURPOSE karyotype is a well established technique in the study of spontaneous miscarriages but is associated with selective overgrowth of maternal cells and other culture artefact (spp) such as tetraploidy, which could mask the true karyotype of the conceptus. METHODS 328 cases of pregnancy losses were studied by karyotype and Multiplex Ligation Dependent Probe Amplification technique. Touch FISH performed in non-cultured cells was used to evaluate the ploidy complement and sex discrepancies using centromeric probes for chromosomes X, Y and 18. RESULTS touch FISH confirmed 13 cases of maternal contamination, identified a triploidy and a monosomy X. True tetraploidy was confirmed in 7/14 cases studied. CONCLUSION touch FISH protocol is extremely accurate in the distinction of genuine mosaicism from tissue culture artifacts namely in cases with suspicion of tetraploidy and can be used to confirm maternal cell contamination in cases with sex discrepancy between karyotype and MLPA.
Collapse
|
15
|
First-trimester prenatal diagnosis performed on pregnant women with fetal ultrasound abnormalities: The reliability of interphase fluorescence in situ hybridization (FISH) on mesenchymal core for the main aneuploidies. Eur J Obstet Gynecol Reprod Biol 2010; 149:143-6. [DOI: 10.1016/j.ejogrb.2009.12.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2009] [Revised: 11/12/2009] [Accepted: 12/11/2009] [Indexed: 11/17/2022]
|
16
|
Sikkema-Raddatz B, Bouman K, Drok G, ter Brugge HG, Suijkerbuijk R. A non-mosaic tetraploidy in the long-term culture of chorionic villi with a trisomy 13 in concomitant amniocytes. Prenat Diagn 2009; 29:541-2. [PMID: 19222025 DOI: 10.1002/pd.2226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
17
|
Wolstenholme J, Evans J, English C. A 45,X fetus with false-negative 46,XX findings in CVS. Prenat Diagn 2008; 28:266-7. [PMID: 18302306 DOI: 10.1002/pd.1961] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
18
|
Waters JJ, Mann K, Grimsley L, Ogilvie CM, Donaghue C, Staples L, Hills A, Adams T, Wilson C. Complete discrepancy between QF-PCR analysis of uncultured villi and karyotyping of cultured cells in the prenatal diagnosis of trisomy 21 in three CVS. Prenat Diagn 2007; 27:332-9. [PMID: 17286305 DOI: 10.1002/pd.1675] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVE To investigate complete discrepancies in the prenatal diagnosis of trisomy 21 between QF-PCR analysis of uncultured villi and karyotyping of cultured cells in three chorion villus samples. METHODS Clinical details were obtained from all three patients. Follow-up studies were undertaken where possible by evaluation of chromosome 21 copy number with QF-PCR, interphase FISH, MLPA and karyotyping, and by post-mortem examination. RESULTS Case 1: severe oligohydramnios and microcephaly on scan. QF-PCR: trisomy 21; MLPA: trisomy 21; cultured karyotype: 46,XY[48]. Placental and fetal tissue results and post-mortem examination indicated a euploid fetus with trisomy 21 mosaicism confined to the placenta. Case 2: Down screen risk 1:16; NT = 4.4 mm; absent nasal bone (Caucasian mother). QF-PCR: disomy 21; cultured karyotype: 47,XY,+ 21[23]. Neck thickening noted at delivery-post-mortem refused, no fetal tissue available. Placental tissue indicated mosaicism for trisomy 21. Case 3: Down screen risk 1:91; NT = 6.7 mm. QF-PCR: disomy 21; cultured karyotype: 46,XX,der(21;21)(q10;q10)[60]. No follow-up possible. PCR genotyping of cultured cells confirmed sample identity in all three cases. Chromosome 21 markers observed by PCR were biallelic in all three cases, indicating that a mitotic error could account for the presence of the abnormal cell lines in each case. CONCLUSION QF-PCR analysis of uncultured villi and cultured karyotyping may rarely show complete discrepancy in the prediction of fetal trisomy 21 in CVS. Within-biopsy sample mosaicism, together with the testing of different cell populations, provide an explanation for these results. Practical ways to minimise the risk of such discrepancy are proposed.
Collapse
Affiliation(s)
- Jonathan J Waters
- Cytogenetics Laboratory, NE Thames Regional Genetics Service, Gt Ormond St Hospital NHS Trust, London, UK.
| | | | | | | | | | | | | | | | | |
Collapse
|