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Labadini C, Lohmann L, Ville Y, Quarello E. Monochorionic twins with discordant trisomy 21, another case to remind this uncommon condition and how to deal with. J Gynecol Obstet Hum Reprod 2023; 52:102620. [PMID: 37295772 DOI: 10.1016/j.jogoh.2023.102620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 05/09/2023] [Accepted: 06/07/2023] [Indexed: 06/12/2023]
Abstract
Monozygotic twins discordant for trisomy 21 are rare. We present the twelfth reported case of this uncommon condition undergoing invasive prenatal diagnosis. Dealing with discordant fetal anomalies in monochorionic pregnancy can be challenging for physicians and patients; pros and cons of different invasive procedure options must be discussed with the couple, contending with certain specific peculiarities of this type of pregnancy. Although chorionic villi sampling can be performed earlier, higher risk of misdiagnosis of discordant aneuploidy is reported. Indeed, when heterokaryotic twins are suspected, a two-sampling amniocentesis is recommended, to ensure independent sampling of each fetus and to rule out confined placental mosaicism as well. The couple should be informed of the possible management and the risks for the non-affected twin whether selective reduction is required, and likewise if the pregnancy continues without selective termination.
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Affiliation(s)
- Corinne Labadini
- Institut méditerranéen d'imagerie médicale appliquée à la gynécologie, la grossesse et l'enfance IMAGE(2), 6 Rue Rocca, 13008 Marseille, France; Unité de dépistage et de diagnostic prénatal, Hôpital Saint-Joseph, 26, boulevard de Louvain, 13285 Marseille cedex, France; Department of Medicine and Surgery, Obstetrics and Gynecology Unit, University of Parma, Parma, Italy
| | | | - Yves Ville
- Department of Obstetrics and Fetal Medicine, APHP Necker-Enfants Malades University Hospital, 75015 Paris, France
| | - Edwin Quarello
- Institut méditerranéen d'imagerie médicale appliquée à la gynécologie, la grossesse et l'enfance IMAGE(2), 6 Rue Rocca, 13008 Marseille, France; Unité de dépistage et de diagnostic prénatal, Hôpital Saint-Joseph, 26, boulevard de Louvain, 13285 Marseille cedex, France.
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2
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Trombetta G, Fabbro D, Demori E, Driul L, Damante G, Xodo S. Rare spontaneous monochorionic dizygotic twins: a case report and a systematic review. BMC Pregnancy Childbirth 2022; 22:564. [PMID: 35836143 PMCID: PMC9284757 DOI: 10.1186/s12884-022-04866-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 06/23/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Monochorionic dizygotic twins are a rare condition, mostly related to assisted reproductive technology. This type of twinning is burdened by the same risk of pregnancy complications found in monochorionic monozygotic pregnancies. CASE PRESENTATION We report a case of spontaneous monochorionic dizygotic twins sharing situs inversus abdominalis and isolated levocardia, with only one twin affected by biliary atresia with splenic malformation syndrome. We also conducted a literature review of the 14 available documented monochorionic dizygotic twin gestations spontaneously conceived. CONCLUSIONS It is still unclear how this unusual type of twinning can occur in spontaneous conception. The evidence so far suggest the importance to timely diagnose the chorionicity, in order to adequately manage the typical complications associated with monochorionicity.
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Affiliation(s)
- Giulia Trombetta
- Department of Gynecology and Obstetrics, School of Medicine of Udine, Udine, Italy
| | - Dora Fabbro
- Istituto Di Genetica Medica, Azienda Sanitaria Universitaria Friuli Centrale, Udine, Italy
| | - Eliana Demori
- Istituto Di Genetica Medica, Azienda Sanitaria Universitaria Friuli Centrale, Udine, Italy
| | - Lorenza Driul
- Department of Gynecology and Obstetrics, School of Medicine of Udine, Udine, Italy.,Dipartimento Di Area Medica, Università Degli Studi Di Udine, Udine, Italy
| | - Giuseppe Damante
- Istituto Di Genetica Medica, Azienda Sanitaria Universitaria Friuli Centrale, Udine, Italy. .,Dipartimento Di Area Medica, Università Degli Studi Di Udine, Udine, Italy.
| | - Serena Xodo
- Department of Gynecology and Obstetrics, School of Medicine of Udine, Udine, Italy. .,Department of Gynecology and Obstetrics, Azienda Sanitaria Universitaria Friuli Centrale, Presidio Ospedaliero Santa Maria della Misericordia, Udine, UD, Italy.
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3
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Lee JY, Kwon JY, Na S, Choe SA, Seol HJ, Kim M, Kim MA, Park CW, Kim K, Ryu HM, Hwang HS, Shim JY. Clinical Practice Guidelines for Prenatal Aneuploidy Screening and Diagnostic Testing from Korean Society of Maternal-Fetal Medicine: (2) Invasive Diagnostic Testing for Fetal Chromosomal Abnormalities. J Korean Med Sci 2021; 36:e26. [PMID: 33496085 PMCID: PMC7834898 DOI: 10.3346/jkms.2021.36.e26] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 11/06/2020] [Indexed: 11/20/2022] Open
Abstract
The Korean Society of Maternal Fetal Medicine proposed the first Korean guideline on prenatal aneuploidy screening and diagnostic testing, in April 2019. The clinical practice guideline (CPG) was developed for Korean women using an adaptation process based on good-quality practice guidelines, previously developed in other countries, on prenatal screening and invasive diagnostic testing for fetal chromosome abnormalities. We reviewed current guidelines and developed a Korean CPG on invasive diagnostic testing for fetal chromosome abnormalities according to the adaptation process. Recommendations for selected 11 key questions are: 1) Considering the increased risk of fetal loss in invasive prenatal diagnostic testing for fetal genetic disorders, it is not recommended for all pregnant women aged over 35 years. 2) Because early amniocentesis performed before 14 weeks of pregnancy increases the risk of fetal loss and malformation, chorionic villus sampling (CVS) is recommended for pregnant women who will undergo invasive prenatal diagnostic testing for fetal genetic disorders in the first trimester of pregnancy. However, CVS before 9 weeks of pregnancy also increases the risk of fetal loss and deformity. Thus, CVS is recommended after 9 weeks of pregnancy. 3) Amniocentesis is recommended to distinguish true fetal mosaicism from confined placental mosaicism. 4) Anti-immunoglobulin should be administered within 72 hours after the invasive diagnostic testing. 5) Since there is a high risk of vertical transmission, an invasive prenatal diagnostic testing is recommended according to the clinician's discretion with consideration of the condition of the pregnant woman. 6) The use of antibiotics is not recommended before or after an invasive diagnostic testing. 7) The chromosomal microarray test as an alternative to the conventional cytogenetic test is not recommended for all pregnant women who will undergo an invasive diagnostic testing. 8) Amniocentesis before 14 weeks of gestation is not recommended because it increases the risk of fetal loss and malformation. 9) CVS before 9 weeks of gestation is not recommended because it increases the risk of fetal loss and malformation. 10) Although the risk of fetal loss associated with invasive prenatal diagnostic testing (amniocentesis and CVS) may vary based on the proficiency of the operator, the risk of fetal loss due to invasive prenatal diagnostic testing is higher in twin pregnancies than in singleton pregnancies. 11) When a monochorionic twin is identified in early pregnancy and the growth and structure of both fetuses are consistent, an invasive prenatal diagnostic testing can be performed on one fetus alone. However, an invasive prenatal diagnostic testing is recommended for each fetus in cases of pregnancy conceived via in vitro fertilization, or in cases in which the growth of both fetuses differs, or in those in which at least one fetus has a structural abnormality. The guidelines were established and approved by the Korean Academy of Medical Sciences. This guideline is revised and presented every 5 years.
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Affiliation(s)
- Ji Yeon Lee
- Department of Obstetrics and Gynecology, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Korea
| | - Ji Young Kwon
- Department of Obstetrics and Gynecology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sunghun Na
- Department of Obstetrics and Gynecology, Kangwon National University Hospital, Kangwon National University School of Medicine, Chuncheon, Korea
| | - Seung Ah Choe
- Department of Preventive Medicine, Korea University College of Medicine, Seoul, Korea
| | - Hyun Joo Seol
- Department of Obstetrics and Gynecology, Kyung Hee University Hospital at Gangdong, College of Medicine, Kyung Hee University, Seoul, Korea
| | - Minhyoung Kim
- Department of Obstetrics and Gynecology, MizMedi Hospital, Seoul, Korea
| | - Min A Kim
- Department of Obstetrics and Gynecology, Gangnam Severance Hospital, Institute of Women's Life Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - Chan Wook Park
- Department of Obstetrics and Gynecology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | | | - Hyun Mee Ryu
- Department of Obstetrics and Gynecology, CHA Bundang Medical Center, CHA University School of Medicine, Seongnam, Korea
| | - Han Sung Hwang
- Department of Obstetrics and Gynecology, Research Institute of Medical Science, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, Korea.
| | - Jae Yoon Shim
- Mirae & Heemang Obstetrics and Gynecology Clinic, Seoul, Korea.
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4
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Johnson BN, Ehli EA, Davies GE, Boomsma DI. Chimerism in health and potential implications on behavior: A systematic review. Am J Med Genet A 2020; 182:1513-1529. [PMID: 32212323 DOI: 10.1002/ajmg.a.61565] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 02/03/2020] [Accepted: 03/02/2020] [Indexed: 12/12/2022]
Abstract
In this review, we focus on the phenomenon of chimerism and especially microchimerism as one of the currently underexplored explanations for differences in health and behavior. Chimerism is an amalgamation of cells from two or more unique zygotes within a single organism, with microchimerism defined by a minor cell population of <1%. This article first presents an overview of the primary techniques employed to detect and quantify the presence of microchimerism and then reviews empirical studies of chimerism in mammals including primates and humans. In women, male microchimerism, a condition suggested to be the result of fetomaternal exchange in utero, is relatively easily detected by polymerase chain reaction molecular techniques targeting Y-chromosomal markers. Consequently, studies of chimerism in human diseases have largely focused on diseases with a predilection for females including autoimmune diseases, and female cancers. We detail studies of chimerism in human diseases and also discuss some potential implications in behavior. Understanding the prevalence of chimerism and the associated health outcomes will provide invaluable knowledge of human biology and guide novel approaches for treating diseases.
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Affiliation(s)
- Brandon N Johnson
- Avera Institute for Human Genetics, Avera McKennan Hospital and University Health Center, Sioux Falls, South Dakota, USA
| | - Erik A Ehli
- Avera Institute for Human Genetics, Avera McKennan Hospital and University Health Center, Sioux Falls, South Dakota, USA
| | - Gareth E Davies
- Avera Institute for Human Genetics, Avera McKennan Hospital and University Health Center, Sioux Falls, South Dakota, USA
| | - Dorret I Boomsma
- Netherlands Twin Register, Department of Biological Psychology, Vrije Universiteit, Amsterdam, The Netherlands
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5
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Prenatal diagnosis of genetic diseases directly using paper-dried cord blood as the starting material for PCR. Anal Bioanal Chem 2019; 411:6825-6835. [PMID: 31410536 DOI: 10.1007/s00216-019-02048-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Revised: 07/05/2019] [Accepted: 07/22/2019] [Indexed: 10/26/2022]
Abstract
A rapid and low-cost method of diagnosis is becoming important for detecting fetal inherited diseases, including single-gene disorders and chromosomal abnormalities. Here, we demonstrated an innovation that use paper-dried cord blood (PCB) as the starting material for PCR and whole genome amplification without any DNA extraction step at a very low cost. A novel PCR buffer named "DDB buffer" containing ammonium sulfate and glycerol were used instead of the conventional 10× PCR buffer. The amplicons were directly analyzed through microchip electrophoresis and whole genome sequencing. Inhibitory substances in filter paper were effectively inactivated using DDB buffer. Direct PCR amplification of DNA fragments ranging from 100 to 900 bp using filter paper spotted with 0.5 to 5 μL of cord blood and various anticoagulants was successful. We were able to determine fetal single-gene disorders and chromosomal diseases in all 46 chromosomes using PCB samples successfully. Compared with prenatal diagnosis using purified DNA, the proposed method is simple, fast, less prone to cross-contamination at minimal cost. Researchers and clinical and healthcare workers may employ this method for genetic diagnosis using cord blood samples with minimum laboratory resources. This method is very promising for a variety of genetic diagnosis applications in underserved communities at the point of need in developing areas. Graphical abstract.
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6
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Barnes‐Davis ME, Cortezzo DE. Two cases of atypical twinning: Phenotypically discordant monozygotic and conjoined twins. Clin Case Rep 2019; 7:920-925. [PMID: 31110715 PMCID: PMC6509934 DOI: 10.1002/ccr3.2113] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 03/01/2019] [Accepted: 03/03/2019] [Indexed: 12/13/2022] Open
Abstract
Atypical twinning highlights that complex mechanisms responsible for twinning are not fully understood and may give further insight into the mechanisms involved. To assume that phenotypic difference is the result of dizygotic twinning would be erroneous and could have significant implications in the care and counseling provided to these patients.
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Affiliation(s)
- Maria E. Barnes‐Davis
- Department of PediatricsUniversity of Cincinnati College of MedicineCincinnatiOhio
- Division of Neonatal and Pulmonary BiologyCincinnati Children’s Hospital Medical CenterCincinnatiOhio
| | - DonnaMaria E. Cortezzo
- Department of PediatricsUniversity of Cincinnati College of MedicineCincinnatiOhio
- Division of Neonatal and Pulmonary BiologyCincinnati Children’s Hospital Medical CenterCincinnatiOhio
- Department of AnesthesiologyUniversity of Cincinnati College of MedicineCincinnatiOhio
- Division of Pain and Palliative MedicineCincinnati Children’s Hospital Medical CenterCincinnatiOhio
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7
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Pregnancy and Multiple Gestations. CHIMERISM 2018. [DOI: 10.1007/978-3-319-89866-7_2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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8
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Uysal NŞ, Gülümser Ç, Çelik ZY, Zeyneloğlu HB, Yanık FFB. Fetal sex discordance in a monochorionic twin pregnancy following intracytoplasmic sperm injection: A case report of chimerism and review of the literature. J Obstet Gynaecol Res 2017; 44:576-582. [DOI: 10.1111/jog.13514] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 08/26/2017] [Indexed: 11/28/2022]
Affiliation(s)
- Nihal Ş. Uysal
- Department of Obstetrics and Gynecology; Faculty of Medicine, Başkent University; Ankara Turkey
| | - Çağrı Gülümser
- Department of Obstetrics and Gynecology; Faculty of Medicine, Başkent University; Ankara Turkey
| | - Zerrin Y. Çelik
- Department of Medical Genetics; Faculty of Medicine, Başkent University; Ankara Turkey
| | - Hulusi B. Zeyneloğlu
- Department of Obstetrics and Gynecology; Faculty of Medicine, Başkent University; Ankara Turkey
| | - Filiz F. B. Yanık
- Department of Obstetrics and Gynecology; Faculty of Medicine, Başkent University; Ankara Turkey
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9
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Dziegiel MH, Hansen MH, Haedersdal S, Barrett AN, Rieneck K, Main KM, Hansen AT, Clausen FB. Blood Chimerism in Dizygotic Monochorionic Twins During 5 Years Observation. Am J Transplant 2017; 17:2728-2732. [PMID: 28422403 DOI: 10.1111/ajt.14318] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 03/17/2017] [Accepted: 04/05/2017] [Indexed: 01/25/2023]
Abstract
Dizygotic monochorionic twin pregnancies can result in blood chimerism due to in utero twin-to-twin exchange of stem cells. In this case, we examined the proportion of allogeneic red blood cells by flow cytometry and the proportion of allogeneic nucleated cells by digital polymerase chain reaction at 7 months and again at 5 years. We found an increase in the proportion of allogeneic cells from 63% to 89% in one twin, and a similar increase in autologous cells in the other twin from 57% to 84%. A paradigm for stem cell therapy could be modeled on this case: induction of tolerance and chimerism by antenatal transfusion of donor stem cells. The procedure would hold the promise of transplantation and tolerance induction without myeloablative conditioning for inheritable benign hematological diseases such as sickle cell disease and thalassemia.
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Affiliation(s)
- M H Dziegiel
- Department of Clinical Immunology, Blood bank, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark.,Institute of Clinical Medicine (IKM), Copenhagen University, Copenhagen, Denmark
| | - M H Hansen
- Department of Clinical Biochemistry, Nordsjaellands Hospital Hillerød, Copenhagen University Hospital, Hillerød, Denmark
| | - S Haedersdal
- Department of Clinical Immunology, Blood bank, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - A N Barrett
- Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - K Rieneck
- Department of Clinical Immunology, Blood bank, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - K M Main
- Institute of Clinical Medicine (IKM), Copenhagen University, Copenhagen, Denmark.,Department of Growth and Reproduction, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - A T Hansen
- Department of Clinical Immunology, Blood bank, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - F B Clausen
- Department of Clinical Immunology, Blood bank, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
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10
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Audibert F, Gagnon A. No. 262-Prenatal Screening for and Diagnosis of Aneuploidy in Twin Pregnancies. JOURNAL OF OBSTETRICS AND GYNAECOLOGY CANADA 2017; 39:e347-e361. [DOI: 10.1016/j.jogc.2017.06.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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11
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Audibert F, Gagnon A. N o 262-Dépistage et diagnostic prénatals de l’aneuploïdie en ce qui concerne les grossesses gémellaires. JOURNAL OF OBSTETRICS AND GYNAECOLOGY CANADA 2017; 39:e329-e346. [DOI: 10.1016/j.jogc.2017.06.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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12
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Unusual Twinning Resulting in Chimerism: A Systematic Review on Monochorionic Dizygotic Twins. Twin Res Hum Genet 2017; 20:161-168. [DOI: 10.1017/thg.2017.4] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Traditionally, it is understood that dizygotic (DZ) twins always have a dichorionic placenta. However, with 8% blood chimerism in DZ twins, placental sharing is probably more common than previously has been recognized. In this article, we will review all available cases of monochorionic dizygotic (MCDZ) twins. A total of 31 twins have been described in literature. A monochorionic diamniotic placenta is reported in all cases. Assisted reproductive technology is responsible for the origin of the pregnancy in 82.1% of the cases. In 15.4% of the sex-discordant twins, a genital anomaly was reported in one of the twins. Chimerism is demonstrable in 90.3% of the twins, leading to various diagnostic difficulties. As this review shows that most MCDZ twins are discovered by accident, it can be argued that it is far more common than has been assumed until now. However, the prevalence is still unclear. Awareness of MCDZ twinning is important, with subsequently correct medical strategies. Similarly, the resulting (blood) chimerism is essential to consider in diagnostic procedures, pre- and postnatally. More research on the effect of placental transfusion between sex-discordant twins is required.
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13
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Urhausen C, Wolf K, Beineke A, Dierks C, Schmicke M, Einspanier A, Günzel-Apel AR. Monochorial diamniotic dizygotic twins in a German Shepherd Dog: A case report. Reprod Domest Anim 2016; 52:140-143. [DOI: 10.1111/rda.12869] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 09/10/2016] [Indexed: 12/01/2022]
Affiliation(s)
- C Urhausen
- Unit of Reproductive Medicine of Clinics - Small Animal Clinic; University of Veterinary Medicine Hannover; Hannover Germany
| | - K Wolf
- Unit of Reproductive Medicine of Clinics - Small Animal Clinic; University of Veterinary Medicine Hannover; Hannover Germany
| | - A Beineke
- Institute for Pathology; University of Veterinary Medicine Hannover; Hannover Germany
| | - C Dierks
- Institute for Animal Breeding and Genetics; University of Veterinary Medicine Hannover; Hannover Germany
| | - M Schmicke
- Clinic for Cattle; Laboratory for Endocrinology; University of Veterinary Medicine Hannover; Hannover Germany
| | - A Einspanier
- Faculty of Veterinary Medicine; Institute of Physiological Chemistry; University of Leipzig; Leipzig Germany
| | - AR Günzel-Apel
- Unit of Reproductive Medicine of Clinics - Small Animal Clinic; University of Veterinary Medicine Hannover; Hannover Germany
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14
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Korsun P, Bals-Pratsch M, Ortmann O, Markus S, Germer U. Antenatal Diagnosis of Dizygotic, Monochorionic Twins Following IVF/ICSI. Geburtshilfe Frauenheilkd 2016; 76:727-730. [PMID: 27365544 DOI: 10.1055/s-0042-101024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
Monochorionic twins are usually monozygotic and thus usually have the same sex. A case of monochorionic diamniotic twins following IVF/ICSI and laser treatment of the zona pellucida ("assisted hatching") is presented in which partial embryo amalgamation appears to have occurred. Discordant sex between the twins was suspected on detailed antenatal ultrasound at 13 + 3 weeks gestation and was confirmed on subsequent examinations. The sexual phenotype at birth was female for one twin and male for the other. Placental histology confirmed the monochorionic, diamniotic situation. Cytogenetic analysis of both twins was carried out postpartum on various tissues. On karyotyping of blood lymphocytes the male and female twins each had one mosaic of male and female cells. Oral mucosal cells showed normal male and female karyotypes respectively. Analysis of urothelium showed a normal result for the male infant, and a weak gonosomal mosaic with an XX and XY constellation for the female infant. At least for blood lymphocytes, a diagnosis of chimerism was proven.
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Affiliation(s)
- P Korsun
- Klinik für Frauenheilkunde und Geburtshilfe der Universität Regensburg am Caritas-Krankenhaus St. Josef, Regensburg
| | - M Bals-Pratsch
- Profertilita, Zentrum für Fruchtbarkeitsmedizin, Regensburg
| | - O Ortmann
- Klinik für Frauenheilkunde und Geburtshilfe der Universität Regensburg am Caritas-Krankenhaus St. Josef, Regensburg
| | - S Markus
- Kompetenzzentrum für Humangenetik, Gynäkologie und Laboratoriumsmedizin, Dr. Staber und Kollegen, Regensburg
| | - U Germer
- Klinik für Frauenheilkunde und Geburtshilfe der Universität Regensburg am Caritas-Krankenhaus St. Josef, Regensburg
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15
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Mayeur Le Bras A, Petit F, Benachi A, Bedel B, Oucherif S, Martinovic J, Armanet N, Tosca L, Gautier V, Parisot F, Labrune P, Tachdjian G, Brisset S. Confined blood chimerism in a monochorionic dizygotic sex discordant twin pregnancy conceived after induced ovulation. ACTA ACUST UNITED AC 2016; 106:298-303. [DOI: 10.1002/bdra.23457] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 07/31/2015] [Accepted: 09/04/2015] [Indexed: 11/05/2022]
Affiliation(s)
- Anne Mayeur Le Bras
- Service d'Histologie Embryologie et Cytogénétique; Hôpitaux Universitaires Paris Sud; Site Antoine Béclère, APHP Clamart France
| | - François Petit
- Laboratoire de Génétique Moléculaire; Hôpitaux Universitaires Paris Sud; Site Antoine Béclère, APHP Clamart France
| | - Alexandra Benachi
- Service de Gynécologie-Obstétrique; Hôpitaux Universitaires Paris Sud; Site Antoine Béclère, APHP Clamart France
| | - Bettina Bedel
- Service de Gynécologie-Obstétrique; Hôpitaux Universitaires Paris Sud; Site Antoine Béclère, APHP Clamart France
| | - Salima Oucherif
- Service de Néonatalogie; Hôpitaux Universitaires Paris Sud; Site Antoine Béclère, APHP Clamart France
| | - Jelena Martinovic
- Unité de Fœtopathologie; Hôpitaux Universitaires Paris Sud; Site Antoine Béclère, APHP Clamart France
| | - Narjes Armanet
- Service d'Histologie Embryologie et Cytogénétique; Hôpitaux Universitaires Paris Sud; Site Antoine Béclère, APHP Clamart France
| | - Lucie Tosca
- Service d'Histologie Embryologie et Cytogénétique; Hôpitaux Universitaires Paris Sud; Site Antoine Béclère, APHP Clamart France
| | - Valérie Gautier
- Service d'Histologie Embryologie et Cytogénétique; Hôpitaux Universitaires Paris Sud; Site Antoine Béclère, APHP Clamart France
| | - Frédéric Parisot
- Service d'Histologie Embryologie et Cytogénétique; Hôpitaux Universitaires Paris Sud; Site Antoine Béclère, APHP Clamart France
| | - Philippe Labrune
- Service de Pédiatrie; Hôpitaux Universitaires Paris Sud; Site Antoine Béclère, APHP Clamart France
| | - Gérard Tachdjian
- Service d'Histologie Embryologie et Cytogénétique; Hôpitaux Universitaires Paris Sud; Site Antoine Béclère, APHP Clamart France
| | - Sophie Brisset
- Service d'Histologie Embryologie et Cytogénétique; Hôpitaux Universitaires Paris Sud; Site Antoine Béclère, APHP Clamart France
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16
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Grubic Z, Stingl Jankovic K, Kelecic J, Batinic D, Dubravcic K, Zunec R. A case of maternal-foetal chimerism identified during routine histocompatibility testing for hematopoietic stem cell transplantation. Int J Immunogenet 2015; 43:1-7. [PMID: 26663895 DOI: 10.1111/iji.12241] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Revised: 10/20/2015] [Accepted: 10/25/2015] [Indexed: 11/29/2022]
Abstract
This report describes a case of maternal-foetal chimerism identified in a boy diagnosed with SCID, who underwent HLA testing in preparation for HSCT. The first analysis was carried out on DNA from peripheral blood and included HLA-A, HLA-B, HLA-DRB1 typing using PCR-SSO. The patient's HLA-B typing results were noninterpretable. All samples were re-typed for HLA-B using PCR-SSP, again resulting in noninterpretable typing of patient's HLA-B. In both cases, several weak positive probes/reactions interfered with the interpretation when using commercial software. Next round of HLA typing, using PCR-SSP and PCR-SSO methods, included the patient's bone marrow sample and HLA-C locus, but interpretation was again not possible. The PCR-STR analysis performed on both peripheral blood and bone marrow samples revealed seven STRs for which two maternal and one paternal allele were detected. Retrospective manual interpretation of HLA-B and HLA-C typing revealed that weak positive reactions were indeed owed to paternal HLA-B and HLA-C alleles and that the patient had both maternal and one paternal allele. Retyping of HLA-B and HLA-C loci and STR analysis on the patient's buccal cells sample revealed the expected one maternal/one paternal allele pattern. In summary, the combination of several different typing methods and manual interpretation were necessary to obtain the patient's HLA typing results.
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Affiliation(s)
- Z Grubic
- Tissue Typing Center, Clinical Department for Transfusion Medicine ad Transplantation Biology, University Hospital Centre Zagreb, Zagreb, Croatia
| | - K Stingl Jankovic
- Tissue Typing Center, Clinical Department for Transfusion Medicine ad Transplantation Biology, University Hospital Centre Zagreb, Zagreb, Croatia
| | - J Kelecic
- Department of Pediatrics, University Hospital Centre Zagreb, Zagreb, Croatia
| | - D Batinic
- Clinical Unit for Cellular Immunodiagnostics, Clinical Department of Laboratory Diagnosis, University Hospital Centre Zagreb, Zagreb, Croatia
| | - K Dubravcic
- Clinical Unit for Cellular Immunodiagnostics, Clinical Department of Laboratory Diagnosis, University Hospital Centre Zagreb, Zagreb, Croatia
| | - R Zunec
- Tissue Typing Center, Clinical Department for Transfusion Medicine ad Transplantation Biology, University Hospital Centre Zagreb, Zagreb, Croatia
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Gagnon A, Audibert F. Prenatal screening and diagnosis of aneuploidy in multiple pregnancies. Best Pract Res Clin Obstet Gynaecol 2013; 28:285-94. [PMID: 24485166 DOI: 10.1016/j.bpobgyn.2013.12.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Accepted: 12/17/2013] [Indexed: 11/29/2022]
Abstract
Prenatal screening for aneuploidy has changed significantly over the last 30 years, from being age-based to maternal serum and ultrasound based techniques. Multiple pregnancies present particular challenges with regards to screening as serum-based screening techniques are influenced by all feti while ultrasound-based techniques can be fetus specific. Tests currently available tend to not perform as well in multiple compared to singleton pregnancies. Considerations must be given to these variations when discussing and performing screening for aneuploidy in this situation. Prenatal invasive diagnosis techniques in multiple pregnancies bring their own challenges from a technical and counselling point of view, in particular with regards to sampling error, mapping and assignment of results and management of abnormal results. This review addresses these particular challenges and provides information to facilitate care.
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Affiliation(s)
- Alain Gagnon
- University of British Columbia, Vancouver, British Columbia, Canada.
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Monochorionic Dizygous Twins Presenting With Blood Chimerism and Discordant Sex. Twin Res Hum Genet 2013; 16:799-801. [DOI: 10.1017/thg.2013.41] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Monochorionic dizygous twins are probably more frequent than considered previously as many cases remain unrecognized, especially when the children have the same sex. Here we present a pair of dizygous, sex-discordant monochorionic twins who were conceived after artificial insemination. Histological examination of the placenta and extensive genetic studies of the healthy boy and girl clearly proved that they indeed were monochorionic dizygous twins with a fully joined blood circulation. We conclude that when counseling parents expecting monochorionic twins of discordant sex, not only a disorder of sexual differentiation in one of the twins should be addressed but also the possibility of dizygosity with a completely normal (sexual) development of both children.
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Kanda T, Ogawa M, Sato K. Confined blood chimerism in monochorionic dizygotic twins conceived spontaneously. AJP Rep 2013; 3:33-6. [PMID: 23943707 PMCID: PMC3699156 DOI: 10.1055/s-0032-1331377] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2012] [Accepted: 09/23/2012] [Indexed: 10/29/2022] Open
Abstract
Traditionally, monochorionicity has been regarded as synonymous with monozygosity. However, several recent cases of monochorionic dizygotic twins have shown that monochorionic twins can be dizygous. We report a rare case of monochorionic diamnionic, gender-discordant twins who were conceived spontaneously. Initially, a monochorionic placenta was diagnosed by ultrasonography at 8 weeks of gestation and then confirmed by pathology after delivery. The twins had different genders. A comparison of cytogenetic analyses using peripheral blood lymphocytes and skin fibroblasts revealed that chimerism was confined to blood cells. We have experienced two cases of monochorionic dizygotic twins since 2003. These cases suggest that monochorionic dizygotic twins are not as rare as previously thought.
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Affiliation(s)
- Takashi Kanda
- Department of Pediatrics, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
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Umstad MP, Short RV, Wilson M, Craig JM. Chimaeric twins: Why monochorionicity does not guarantee monozygosity. Aust N Z J Obstet Gynaecol 2012; 52:305-7. [PMID: 22563999 DOI: 10.1111/j.1479-828x.2012.01445.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2012] [Accepted: 03/29/2012] [Indexed: 12/01/2022]
Affiliation(s)
- Mark P. Umstad
- Department of Obstetrics and Gynaecology; University of Melbourne; The Royal Women's Hospital; Parkville; Victoria; Australia
| | - Roger V. Short
- Faculty of Medicine, Dentistry and Health Sciences; University of Melbourne; Melbourne; Victoria; Australia
| | - Matthew Wilson
- Sydney West Area Health Service; Castle Hill; New South Wales; Australia
| | - Jeffrey M. Craig
- Murdoch Childrens Research Institute; Department of Paediatrics; University of Melbourne; The Royal Children's Hospital; Parkville; Victoria; Australia
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Audibert F, Gagnon A, Douglas Wilson R, Audibert F, Blight C, Brock JA, Cartier L, Désilets VA, Gagnon A, Johnson JA, Langlois S, Murphy-Kaulbeck L, Okun N, Pastuck M, Senikas V, Langlois S, Chitayat D, Désilets VA, Geraghty MT, Marcadier J, Nelson TN, Skidmore D, Siu V, Tihy F. Prenatal Screening for and Diagnosis of Aneuploidy in Twin Pregnancies. JOURNAL OF OBSTETRICS AND GYNAECOLOGY CANADA 2011. [DOI: 10.1016/s1701-2163(16)34963-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Chimérisme tétragamétique : à propos d’un cas. ACTA ACUST UNITED AC 2011; 40:77-80. [DOI: 10.1016/j.jgyn.2010.06.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2010] [Revised: 06/16/2010] [Accepted: 06/18/2010] [Indexed: 11/18/2022]
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Hackmon R, Jormark S, Cheng V, O'Reilly Green C, Divon MY. Monochorionic dizygotic twins in a spontaneous pregnancy: a rare case report. J Matern Fetal Neonatal Med 2009; 22:708-10. [DOI: 10.1080/14767050902763159] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Machin G. Non-identical monozygotic twins, intermediate twin types, zygosity testing, and the non-random nature of monozygotic twinning: A review. AMERICAN JOURNAL OF MEDICAL GENETICS PART C-SEMINARS IN MEDICAL GENETICS 2009; 151C:110-27. [DOI: 10.1002/ajmg.c.30212] [Citation(s) in RCA: 106] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Ramsay M, Pfaffenzeller W, Kotze E, Bhengu L, Essop F, de Ravel T. Chimerism in black southern African patients with true hermaphroditism 46,XX/47XY,+21 and 46,XX/46,XY. Ann N Y Acad Sci 2009; 1151:68-76. [PMID: 19154517 DOI: 10.1111/j.1749-6632.2008.03570.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
True hermaphroditism is defined by the presence of both testicular and ovarian tissue in an individual. True hermaphrodites usually present at birth with ambiguous genitalia, and subsequent invasive investigations are needed to confirm the diagnosis. Several large cohorts of black South Africans with true hermaphroditism have been described, and by far the majority of those investigated had a 46,XX karyotype, with absence of the SRY sequence. This paper represents the first report of the molecular investigation of mosiacism/chimerism as the cause of hermaphroditism in black southern African patients. It is the second report worldwide of a 46,XX/47,XY,+21 chimera, with the first described in a Japanese infant in 1994. Case 1 in the present study is a child who is a 46,XX/47,XY,+21 tetragametic chimera. Molecular studies revealed two paternal and two maternal alleles at four of ten STR loci investigated and three alleles at four of these loci. The young boy exhibited no features of Down syndrome, other than a unilateral single palmar crease. Cases 2 and 3 both have a 46,XX/46,XY karyotype. Chimerism is supported by molecular analysis in Case 2, and molecular studies were not done for Case 3.
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Affiliation(s)
- M Ramsay
- Division of Human Genetics, National Health Laboratory Service and School of Pathology, University of the Witwatersrand, Johannesburg, South Africa.
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Ekelund CK, Skibsted L, Søgaard K, Main KM, Dziegiel MH, Schwartz M, Moeller N, Roos L, Tabor A. Dizygotic monochorionic twin pregnancy conceived following intracytoplasmic sperm injection treatment and complicated by twin-twin transfusion syndrome and blood chimerism. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2008; 32:832-834. [PMID: 18956441 DOI: 10.1002/uog.6221] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We report a case of a dizygotic monochorionic twin pregnancy preceded by intracytoplasmic sperm injection treatment including assisted hatching. On ultrasound examination at 25 weeks' gestation the twins, which had been assumed to be monochorionic, were found to be of different sexes. Karyotyping and zygocity determination were performed on amniotic fluid and showed the twins to be dizygotic with normal female and male karyotypes. There were clinical and sonographic signs of twin-twin transfusion syndrome (TTTS), and Cesarean delivery was performed at 32 weeks' gestation. At birth the twins were phenotypically a normal male and a normal female. Histology of the placenta showed it to be monochorionic diamniotic. Blood chimerism was found postnatally as both infants had the karyotypes 46,XX[13]/46,XY[17]. Chimerism was not found in cells from a buccal swab at 6 months of age. This is one of only a few reported cases of dizygotic monochorionic twins. Nearly all of these cases have been conceived after assisted reproductive technology procedures. It is of clinical importance to be aware of this rare phenomenon in relation to TTTS, prenatal screening and parental counseling.
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Affiliation(s)
- C K Ekelund
- Department of Fetal Medicine, Copenhagen University Hospital, Rigshospitalet, Denmark.
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Segal NL. Twin Towers: The Ones Left Behind; Research Reviews: Chimeric DZ Twins, DZ Twin Mothers; Revisited: The New York Child Development Center Twin Study; New and Unusual Twins. Twin Res Hum Genet 2006. [DOI: 10.1375/twin.9.6.1038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AbstractTwin victims and survivors of the 2001 World Trade Tower attack are remembered. Central themes from the twin loss literature are also highlighted. Next, new research studies on dizygotic (DZ) twins and mothers of DZ twins are reviewed. Specifically, a rare monochorionic–diamniotic DZ twin pair with chimerism is described, and findings concerning genetic variants of GDF9 in mothers (that are associated with DZ twinning tendencies in families) are summarized. This is followed by another look at the controversial 1960s Child Development Center Twin Study that tracked the development of separated twins. Information on several new and unusual twins is also presented.
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