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Abgral M, Bouvattier C, Senat MV, Bouchghoul H. The role of pre- and postnatal investigations in suspected isolated hypospadias. J Gynecol Obstet Hum Reprod 2024; 53:102781. [PMID: 38561025 DOI: 10.1016/j.jogoh.2024.102781] [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: 02/07/2024] [Revised: 03/25/2024] [Accepted: 03/25/2024] [Indexed: 04/04/2024]
Abstract
INTRODUCTION Prenatal investigations are usually performed to diagnose severe or associated forms of hypospadias. However, the value of this workup and the correlation with the postnatal diagnosis and follow-up have not been studied in the literature. The aims of the study were to describe postnatal outcomes. MATERIAL AND METHODS We conducted a single-center retrospective study. We included fetuses with a prenatal suspicion of isolated hypospadias (no associated ultrasound abnormality). Postnatal findings were described including neonatal examination with confirmation of the diagnosis or not of hypospadias, the diagnosis of isolated or associated hypospadias, investigations and management. RESULTS A total of 21 patients with a suspicion of isolated hypospadias on prenatal ultrasound and available postnatal follow-up were included. The diagnosis of hypospadias was confirmed at neonatal examination for 17/21 (81 %) children. All 17 confirmed cases underwent at least one urological surgical procedure. Postnatally, the diagnosis of hypospadias in 4/17(23.5 %) cases was found to be associated with the following diagnosis: Denys-Drash syndrome, deletion of chromosome9 and duplication of chromosome20 involved in genital development, significant duplication of the short arm of chromosome 16, mosaic karyotypic abnormality [45, X (64 %)/46, XY (36 %)]. The hormonal assessment revealed 3/17(17.6 %) abnormalities: one diagnosis of partial androgen insensitivity syndrome and two cases of gonadal dysgenesis with low AMH and inhibin B. CONCLUSION Prenatal diagnosis of isolated hypospadias may be associated with postnatal genetic abnormalities. In this context, a prenatal assessment by amniocentesis with chromosomal microarray analysis can be an option after discussion with the woman.
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Affiliation(s)
- Maëlig Abgral
- Department of Obstetrics and Gynecology, AP-HP, Bicêtre Hospital, Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | - Claire Bouvattier
- Department of Pediatric Endocrinology, AP-HP, Bicêtre Hospital, Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | - Marie-Victoire Senat
- Department of Obstetrics and Gynecology, AP-HP, Bicêtre Hospital, Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | - Hanane Bouchghoul
- Department of Obstetrics and Gynecology, Bordeaux University Hospital, Bordeaux, France.
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2
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Snipes M, Stokes S, Vidalin A, Moore LD, Schlabritz-Lutsevich N, Maher J. Phenotype-Genotype Discordance and a Case of a Disorder of Sexual Differentiation. Case Rep Genet 2024; 2024:9936936. [PMID: 39050587 PMCID: PMC11268958 DOI: 10.1155/2024/9936936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 03/06/2024] [Accepted: 05/11/2024] [Indexed: 07/27/2024] Open
Abstract
Discordance between the genetic sex and phenotype seen on ultrasound can identify disorders of sexual development (DSD) that previously escaped detection until puberty. We describe a 46, XY disorder of sexual differentiation caused by a rare mutation in the SF1 gene (OMIM]184757, (NR5A1). The mutation (NR5A1)-c.205C > G (p. Arg69Gly) was discovered after a phenotype-genotype discrepancy was encountered during prenatal care. The baby with 46, XY DSD has female external genitalia but evidence of Y chromosome-related regression of Müllerian structures and the absence of palpable gonads. We discussed the literature on phenotype-genotype discrepancy and the importance of care coordination between the antenatal and postnatal teams to ensure a timely diagnosis of DSD.
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Affiliation(s)
- Madeline Snipes
- Augusta University, Department of Obstetrics and Gynecology, Augusta, GA, USA
| | - Stephanie Stokes
- Augusta University, Department of Obstetrics and Gynecology, Augusta, GA, USA
| | - Amy Vidalin
- Augusta University, Department of Obstetrics and Gynecology, Augusta, GA, USA
| | - Lee D. Moore
- Texas Tech University Health Science Center, Permian Basin, Odessa, TX, USA
| | | | - James Maher
- Augusta University, Department of Obstetrics and Gynecology, Augusta, GA, USA
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3
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Moradi B, Golezar MH, Mortazavi Ardestani R, Hassanzadeh S, Jannatdoust P, Banihashemian M, Batavani N. Ultrasound and magnetic resonance imaging features of fetal urogenital anomalies: A pictorial essay. Congenit Anom (Kyoto) 2024; 64:70-90. [PMID: 38586935 DOI: 10.1111/cga.12568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 02/27/2024] [Accepted: 03/21/2024] [Indexed: 04/09/2024]
Abstract
This pictorial essay focuses on ultrasound (US) and magnetic resonance imaging (MRI) features of fetal urogenital anomalies. Fetal urogenital malformations account for 30%-50% of all anomalies discovered during pregnancy or at birth. They are usually detected by fetal ultrasound exams. However, when ultrasound data on their characteristics is insufficient, MRI is the best option for detecting other associated anomalies. The prognosis highly depends on their type and whether they are associated with other fetal abnormalities.
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Affiliation(s)
- Behnaz Moradi
- Advanced Diagnostic and Interventional Radiology Research Center (ADIR), Tehran University of Medical Sciences, Tehran, Iran
- Department of Radiology, Yas Complex Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Hossein Golezar
- Advanced Diagnostic and Interventional Radiology Research Center (ADIR), Tehran University of Medical Sciences, Tehran, Iran
- Student Research Committee, Faculty of Medicine, Shahed University, Tehran, Iran
| | | | - Sara Hassanzadeh
- Department of Radiology, Mayo Clinic College of Medicine and Science, Rochester, Minnesota, USA
| | - Payam Jannatdoust
- Advanced Diagnostic and Interventional Radiology Research Center (ADIR), Tehran University of Medical Sciences, Tehran, Iran
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Masoumeh Banihashemian
- Department of Radiology, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Nasim Batavani
- Department of Radiology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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Miller AS, Singh TA. Early diagnosis of androgen insensitivity syndrome with cell-free fetal DNA screening: A case report. Int J Gynaecol Obstet 2024; 164:797-798. [PMID: 37922216 DOI: 10.1002/ijgo.15231] [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: 08/12/2023] [Revised: 10/11/2023] [Accepted: 10/20/2023] [Indexed: 11/05/2023]
Abstract
SynopsisNon‐invasive prenatal testing provides an early opportunity to identify patients with genotype–phenotype sex discordance and can be used to screen for complete androgen insensitivity syndrome.
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Affiliation(s)
- Amitai S Miller
- Harvard Medical School, Boston, Massachusetts, USA
- Department of Obstetrics & Gynecology, Cambridge Health Alliance, Cambridge, Massachusetts, USA
| | - Tara A Singh
- Harvard Medical School, Boston, Massachusetts, USA
- Department of Obstetrics & Gynecology, Cambridge Health Alliance, Cambridge, Massachusetts, USA
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5
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Cursino KA, Garcia GM, Barros BA, Mazzola TN, Fabbri-Scallet H, Guaragna MS, Vieira TAP, Mello MPD, Maciel-Guerra AT, Guerra-Junior G. Prenatal Findings in Postnatal Cases of Disorders of Sex Development: Experience from a Tertiary-Specialized Center in Brazil. Fetal Diagn Ther 2023; 51:49-54. [PMID: 37793360 DOI: 10.1159/000534401] [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: 05/24/2023] [Accepted: 09/27/2023] [Indexed: 10/06/2023]
Abstract
INTRODUCTION AND OBJECTIVE Prenatal suspicion of disorders/differences of sex development (DSDs) is a relatively new phenomenon. The aim of this study was to review the prenatal findings of DSD cases postnatally diagnosed in our tertiary referral center. METHODS We evaluated 57 DSD cases with sex ambiguity who had undergone prenatal ultrasound with phenotypic sex assessment and/or cell-free fetal DNA (cffDNA) for genotypic sex assessment. RESULTS Prenatal cffDNA had been performed in 32 cases, being positive (suggestive of male genotypic sex) in 26 and negative (suggestive of female genotypic sex) in 6. Five with cffDNA negative had a prenatal ultrasound indicating female external genitalia, in turn, in those with cffDNA positive, only two had a prenatal ultrasound indicating male external genitalia. Our postnatal data showed that when external genitalia were female or poorly virilized, prenatal ultrasound indicated female sex, but in cases of higher degree of virilization, ultrasound showed similar rates of male, female, or undetermined sex. Regarding the karyotype, our data showed those with XY karyotype had positive cffDNA, those with XX karyotype had negative cffDNA, and all five with sex chromosome anomalies had positive cffDNA because they were 45,X/46,XY. We suggested an algorithm to investigate these cases during gestation, including evaluation of uterus, fetal growth, and malformations. CONCLUSION We suggest that the parents should be counseled prenatally by a dedicated multidisciplinary team with experience in DSD management and evaluated as soon as possible after birth.
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Affiliation(s)
- Kleber Andrade Cursino
- Interdisciplinary Group for Studies of Sex Determination and Differentiation (GIEDDS), School of Medical Sciences, State University of Campinas (UNICAMP), Campinas, Brazil
| | - Guilherme Mantelato Garcia
- Interdisciplinary Group for Studies of Sex Determination and Differentiation (GIEDDS), School of Medical Sciences, State University of Campinas (UNICAMP), Campinas, Brazil
| | - Beatriz Amstalden Barros
- Interdisciplinary Group for Studies of Sex Determination and Differentiation (GIEDDS), School of Medical Sciences, State University of Campinas (UNICAMP), Campinas, Brazil
| | - Tais Nitsch Mazzola
- Interdisciplinary Group for Studies of Sex Determination and Differentiation (GIEDDS), School of Medical Sciences, State University of Campinas (UNICAMP), Campinas, Brazil
| | - Helena Fabbri-Scallet
- Interdisciplinary Group for Studies of Sex Determination and Differentiation (GIEDDS), School of Medical Sciences, State University of Campinas (UNICAMP), Campinas, Brazil
| | - Mara Sanches Guaragna
- Interdisciplinary Group for Studies of Sex Determination and Differentiation (GIEDDS), School of Medical Sciences, State University of Campinas (UNICAMP), Campinas, Brazil
| | - Tarsis Antonio Paiva Vieira
- Interdisciplinary Group for Studies of Sex Determination and Differentiation (GIEDDS), School of Medical Sciences, State University of Campinas (UNICAMP), Campinas, Brazil
| | - Maricilda Palandi de Mello
- Interdisciplinary Group for Studies of Sex Determination and Differentiation (GIEDDS), School of Medical Sciences, State University of Campinas (UNICAMP), Campinas, Brazil
| | - Andrea Trevas Maciel-Guerra
- Interdisciplinary Group for Studies of Sex Determination and Differentiation (GIEDDS), School of Medical Sciences, State University of Campinas (UNICAMP), Campinas, Brazil
| | - Gil Guerra-Junior
- Interdisciplinary Group for Studies of Sex Determination and Differentiation (GIEDDS), School of Medical Sciences, State University of Campinas (UNICAMP), Campinas, Brazil
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Shen H, Liu Y, Wang C, Wang R, Di Z, Huang X, Zhang H, Liu M. Prenatal diagnosis of 46,XX testicular disorder of sex development with SRY-positive: A case report and review of the literature. Eur J Obstet Gynecol Reprod Biol 2023; 289:140-144. [PMID: 37660509 DOI: 10.1016/j.ejogrb.2023.08.393] [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: 08/10/2023] [Accepted: 08/30/2023] [Indexed: 09/05/2023]
Abstract
We report a case of a fetus with 46,XX testicular disorder of sex development detected prenatally. This fetus was found abnormally due to non-invasive prenatal testing. Amniocentesis revealed SRY gene on the X chromosome of the fetus. The related literature was reviewed, and the advantages and limitations of various prenatal diagnostic techniques were discussed. The combination of non-invasive prenatal testing and various prenatal diagnostic techniques has enabled more fetuses with sex reversal to be detected.
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Affiliation(s)
- Huimin Shen
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Harbin Medical University, China
| | - Yu Liu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Harbin Medical University, China
| | - Chao Wang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Harbin Medical University, China
| | - Ruijing Wang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Harbin Medical University, China
| | - Zhixin Di
- Department of Ultrasonic Medicine, The Second Affiliated Hospital of Harbin Medical University, China
| | - Xin Huang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Harbin Medical University, China
| | - Haomiao Zhang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Harbin Medical University, China
| | - Meimei Liu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Harbin Medical University, China.
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Griffin LB, McCarthy M, Russo ML. Navigation of Prenatal Care With Sex Discordance Between Cell-free DNA and Ultrasound Findings. Clin Obstet Gynecol 2023; 66:616-623. [PMID: 37650671 DOI: 10.1097/grf.0000000000000802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
The utilization of cell-free DNA (cfDNA) screening has expanded rapidly across the age spectrum of pregnant persons. With cfDNA's widespread adoption, genetic fetal sex is now often known before a phenotypic assessment on anatomic survey. CfDNA detects sex discordance in 1/1500 to 2000 pregnancies. Upon detection of sex discordance, lab error or other factors should first be assessed. Once other causes have been ruled out, this may indicate an underlying disorder/difference in sex development. A multidisciplinary team should coordinate diagnosis, treatment, and support for the family. This review discusses the diagnostic workup, emphasizing the multidisciplinary counseling and management of disorder/differences in sex development.
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Affiliation(s)
- Laurie B Griffin
- Brown University, Warren Alpert School of Medicine, Providence, Rhode Island
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8
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Desarrollo genital prenatal. Clasificación, diagnóstico y manejo de las anomalías de la diferenciación sexual. CLINICA E INVESTIGACION EN GINECOLOGIA Y OBSTETRICIA 2023. [DOI: 10.1016/j.gine.2022.100828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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9
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Zhytnik L, Peters M, Tilk K, Reimand T, Ilisson P, Kahre T, Murumets Ü, Ehrenberg A, Ustav EL, Tõnisson N, Mölder S, Teder H, Krjutškov K, Salumets A. Prenatal diagnosis of a 46,XY karyotype female fetus with an SRY-associated gonadal dysgenesis, conceived through an intracytoplasmic sperm injection: a case report. BMC Pregnancy Childbirth 2022; 22:105. [PMID: 35123446 PMCID: PMC8818175 DOI: 10.1186/s12884-022-04431-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 01/26/2022] [Indexed: 11/19/2022] Open
Abstract
Background Permanent progression of paternal age and development of reproductive medicine lead to increase in number of children conceived with assisted reproductive techniques (ART). Although it is uncertain if ARTs have direct influence on offspring health, advanced paternal age, associated comorbidities and reduced fertility possess significant risks of genetic disorders to the offspring. With a broad implementation of a non-invasive prenatal testing (NIPT), more cases of genetic disorders, including sex discordance are revealed. Among biological causes of sex discordance are disorders of sexual development, majority of which are associated with the SRY gene. Case presentation We report a case of a non-invasive prenatal testing and ultrasound sex discordance in a 46,XY karyotype female fetus with an SRY pathogenic variant, who was conceived through an intracytoplasmic sperm injection (ICSI) due to severe oligozoospermia of the father. Advanced mean age of ICSI patients is associated with risk of de novo mutations and monogenic disorders in the offspring. Additionally, ICSI patients have higher risk to harbour infertility-predisposing mutations, including mutations in the SRY gene. These familial and de novo genetic factors predispose ICSI-conceived children to congenital malformations and might negatively affect reproductive health of ICSI-patients’ offspring. Conclusions Oligozoospermic patients planning assisted reproduction are warranted to undergo genetic counselling and testing for possible inherited and mosaic mutations, and risk factors for de novo mutations.
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10
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Shi Y, Li X, Ju D, Li Y, Zhang X, Zhang Y. Efficiency of Noninvasive Prenatal Testing for Sex Chromosome Aneuploidies. Gynecol Obstet Invest 2021; 86:379-387. [PMID: 34384080 DOI: 10.1159/000518002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 06/18/2021] [Indexed: 11/19/2022]
Abstract
OBJECTIVE This study was designed to investigate the efficiency of noninvasive prenatal testing (NIPT) for screening fetal sex chromosome aneuploidies (SCAs) through sequencing of cell-free DNA in maternal plasma. METHODS This is a retrospective study on the positive NIPT results for SCAs collected from our hospital between January 2012 and December 2018. Samples with positive NIPT results for SCAs were then confirmed by prenatal or postnatal karyotyping analysis. RESULTS After cytogenetic analysis, abnormal karyotypes were confirmed in 104 cases and the overall positive predictive value (PPV) of NIPT for SCAs was 43.40% (102/235). The most frequently detected karyotypes included 47,XXY (n = 42), 47,XXX (n = 20), 47,XYY (n = 16), and 45,X (n = 2). Meanwhile, 10 cases were confirmed with mosaic karyotype 45,X/46,XX and 14 cases with numerical or structural chromosome abnormalities, including a double trisomy 48,XXX,+18. Cytogenetic results from the other 131 cases showed normal XX or XY, which were discordant with NIPT results. Upon analysis of parental karyotypes, 29 (12.34%) showed false positivity in NIPT results that were caused by maternal sex chromosome abnormalities. CONCLUSION NIPT is an effective screening tool for SCA with a PPV of 43.40%. Maternal karyotype abnormalities occurred in 12.34% of the cases with abnormal NIPT. Diagnostic testing of the fetus and the mother are recommended.
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Affiliation(s)
- Yunfang Shi
- Medical Genetic Lab, Obstetrics and Gynecology Department, Tianjin Medical University General Hospital, Tianjin, China
| | - Xiaozhou Li
- Medical Genetic Lab, Obstetrics and Gynecology Department, Tianjin Medical University General Hospital, Tianjin, China
| | - Duan Ju
- Medical Genetic Lab, Obstetrics and Gynecology Department, Tianjin Medical University General Hospital, Tianjin, China
| | - Yan Li
- Medical Genetic Lab, Obstetrics and Gynecology Department, Tianjin Medical University General Hospital, Tianjin, China
| | - Xiuling Zhang
- Medical Genetic Lab, Obstetrics and Gynecology Department, Tianjin Medical University General Hospital, Tianjin, China
| | - Ying Zhang
- Medical Genetic Lab, Obstetrics and Gynecology Department, Tianjin Medical University General Hospital, Tianjin, China
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Soto ÁL, González MB, Reyes IU, Meseguer González JL, Pérez MÁJ, Izquierdo OG. Fetal sex discordance. Taiwan J Obstet Gynecol 2021; 59:652-655. [PMID: 32917312 DOI: 10.1016/j.tjog.2020.07.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/13/2020] [Indexed: 12/01/2022] Open
Abstract
Fetal sex discordance is an entity that is becoming more frequent due to the expansion of the cfDNA for prenatal diagnosis. Its incidence can be estimated in 1/1500-2000 pregnancies, a frequency as high as that of some common chromosomopathies. The causes of this phenomenon are multiple and diverse, ranging from laboratory errors to important pathologies such as disorders of sexual differentiation. The management of a case of fetal sex discordance must be structured, starting with the review of the clinical history and the tests performed, and may require the performance of invasive tests to reach a diagnosis. Prevention through adequate pretest counseling and ultrasound confirmation can help to reduce its incidence.
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Affiliation(s)
- Álvaro López Soto
- Prenatal Diagnosis Unit, Department of Obstetrics, Hospital General Santa Lucía, Cartagena, Spain.
| | - Mar Bueno González
- Prenatal Diagnosis Unit, Department of Obstetrics, Hospital General Santa Lucía, Cartagena, Spain
| | - Isabel Urbano Reyes
- Prenatal Diagnosis Unit, Department of Obstetrics, Hospital General Santa Lucía, Cartagena, Spain
| | | | - M Ángeles Jódar Pérez
- Prenatal Diagnosis Unit, Department of Obstetrics, Hospital General Santa Lucía, Cartagena, Spain
| | - Olivia García Izquierdo
- Prenatal Diagnosis Unit, Department of Obstetrics, Hospital General Santa Lucía, Cartagena, Spain
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12
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Yu FNY, Li EYY, Kong MCW, Ma TWL, Chan KYK, Man E, Chung BHY, Kan ASY. Increasing prenatal diagnosis of chimeras with the use of noninvasive prenatal screening: Report of two cases. Prenat Diagn 2021; 41:697-700. [PMID: 33527400 DOI: 10.1002/pd.5911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 12/26/2020] [Accepted: 01/19/2021] [Indexed: 11/09/2022]
Affiliation(s)
- Florrie N Y Yu
- Department of Obstetrics and Gynaecology, Queen Elizabeth Hospital, Hong Kong, China
| | - Elizabeth Y Y Li
- Department of Obstetrics and Gynaecology, United Christian Hospital, Hong Kong, China
| | - Meliza C W Kong
- Department of Obstetrics and Gynaecology, United Christian Hospital, Hong Kong, China
| | - Teresa W L Ma
- Department of Obstetrics and Gynaecology, Queen Elizabeth Hospital, Hong Kong, China
| | - Kelvin Y K Chan
- Department of Obstetrics and Gynaecology, Prenatal Diagnostic Laboratory, Tsan Yuk Hospital, Hong Kong, China.,Department of Obstetrics and Gynaecology, Queen Mary Hospital, Hong Kong, China
| | - Elim Man
- Department of Paediatrics and Adolescent Medicine, Hong Kong Children's Hospital, Hong Kong, China
| | - Brian H Y Chung
- Department of Paediatrics and Adolescent Medicine, The University of Hong Kong, Hong Kong, China
| | - Anita S Y Kan
- Department of Obstetrics and Gynaecology, Prenatal Diagnostic Laboratory, Tsan Yuk Hospital, Hong Kong, China.,Department of Obstetrics and Gynaecology, Queen Mary Hospital, Hong Kong, China
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13
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Costagliola G, Cosci O di Coscio M, Masini B, Baldinotti F, Caligo MA, Tyutyusheva N, Sessa MR, Peroni D, Bertelloni S. Disorders of sexual development with XY karyotype and female phenotype: clinical findings and genetic background in a cohort from a single centre. J Endocrinol Invest 2021; 44:145-151. [PMID: 32378143 DOI: 10.1007/s40618-020-01284-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 04/28/2020] [Indexed: 12/12/2022]
Abstract
PURPOSE 46, XY disorders (or differences) of sex development (DSD) are a group of clinical conditions with variable genetic background; correct diagnosis is often difficult, but it permits to optimize the management. The aim of this study is to identify clinical and genetics features of a group of women with 46, XY DSD to define some issues characterizing people with 46, XY DSD in Italy. METHODS Retrospective analysis of girls and women with 46, XY DSD and female phenotype evaluated between year 2000 and 2016, performed by anonymised database, focusing on the clinical features and management, including presentation, first diagnostic suspect, gonadal surgery and molecular diagnostic delay. RESULTS A total of 84 records were collected (mean age at clinical presentation: 9.1 ± 7.9 years; mean age at definitive diagnosis: 20.1 ± 15.0 years). Complete androgen insensitivity syndrome was the most common diagnosis (60%). Only 12 patients (14.3%) did not receive a molecular diagnosis. Early misdiagnoses frequently occurred; diagnostic delay was 10.2 ± 11.2 years, being reduced in patients presenting from 2007 to 2016. The discordance between genotypic and phenotypic sex during pregnancy or at birth determined early reason for referral in a considerable percentage (4.9%). CONCLUSION Misdiagnosis and long diagnostic delays are present in females with 46, XY DSD in Italy, but the new genetic techniques permit faster right diagnoses in the last years. The centralization in dedicated third level units permits to reduce the number of patients without a molecular diagnosis, allowing better clinical management and appropriate genetic counselling.
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Affiliation(s)
- G Costagliola
- Division of Paediatrics, Department of Clinical and Experimental Medicine, Pediatric and Adolescent Endocrinology, University of Pisa, Pisa, Italy
| | - M Cosci O di Coscio
- Division of Paediatrics, Department of Clinical and Experimental Medicine, Pediatric and Adolescent Endocrinology, University of Pisa, Pisa, Italy
| | - B Masini
- Division of Paediatrics, Department of Clinical and Experimental Medicine, Pediatric and Adolescent Endocrinology, University of Pisa, Pisa, Italy
| | - F Baldinotti
- Laboratory of Molecular Genetics, Azienda Ospedaliero Universitaria Pisa, Pisa, Italy
| | - M A Caligo
- Laboratory of Molecular Genetics, Azienda Ospedaliero Universitaria Pisa, Pisa, Italy
| | - N Tyutyusheva
- Division of Paediatrics, Department of Clinical and Experimental Medicine, Pediatric and Adolescent Endocrinology, University of Pisa, Pisa, Italy
| | - M R Sessa
- Laboratory of Endocrinology, Azienda Ospedaliero Universitaria Pisa, Pisa, Italy
| | - D Peroni
- Division of Paediatrics, Department of Clinical and Experimental Medicine, Pediatric and Adolescent Endocrinology, University of Pisa, Pisa, Italy
| | - S Bertelloni
- Division of Paediatrics, Department of Clinical and Experimental Medicine, Pediatric and Adolescent Endocrinology, University of Pisa, Pisa, Italy.
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Abstract
A high proportion of observed fetal sex discordances between single-nucleotide polymorphism–based noninvasive prenatal screening tests and prenatal or newborn examinations are attributable to disorders of sexual development. To assess the causes of reported discordance between noninvasive prenatal testing (NIPT) and ultrasound or other clinical information.
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15
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Sofer L, D'Oro A, Rosoklija I, Leeth EA, Goetsch AL, Moses S, Chen D, Finlayson C, Johnson EK. Impact of cell-free DNA screening on parental knowledge of fetal sex and disorders of sex development. Prenat Diagn 2020; 40:1489-1496. [PMID: 32683746 DOI: 10.1002/pd.5801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 06/01/2020] [Accepted: 07/14/2020] [Indexed: 12/24/2022]
Abstract
OBJECTIVE Discrepancies between cfDNA and ultrasound predicted fetal sex occur, possibly indicating disorders/differences of sex development (DSDs). Among expectant/recent parents, this study assessed cfDNA knowledge/use, fetal sex determination attitudes/behaviors, general knowledge of DSD, and possible psychological impact of discrepancy between fetal sex on cfDNA and ultrasound. METHOD Parents were surveyed about fetal sex determination methods, knowledge of cfDNA and DSD, distress related to possible cfDNA inaccuracy. RESULTS Of 916 respondents, 44% were aware of possible discrepancy between cfDNA and ultrasound, 22% were aware of DSD. 78% and 75% would be upset and worried, respectively, with results showing fetal sex discrepancy. Most (67%) revealed predicted fetal sex before delivery. 38% were offered cfDNA. Of those revealing fetal sex, 24% used cfDNA results, 71% ultrasound, and 7% both. cfDNA users were more frequently aware of possible discrepancy between cfDNA and ultrasound (76% vs 41%, P < .0001), but not of DSD (29% vs 23%, P = .29). CONCLUSION Fetal sex determination is favored, and cfDNA is frequently used for predicting fetal chromosomal sex. Many parents are unaware of possible discrepancies between cfDNA and ultrasound, and potential for DSD. Most would be distressed by discordant results. Accurate counseling regarding limitations cfDNA for fetal sex determination is needed.
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Affiliation(s)
- Laurel Sofer
- Division of Urology, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois, USA
- Department of Urology, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Anthony D'Oro
- Division of Urology, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois, USA
| | - Ilina Rosoklija
- Division of Urology, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois, USA
| | - Elizabeth A Leeth
- Division of Genetics, Birth Defects and Metabolism, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois, USA
- Graduate Program in Genetic Counseling, Northwestern University, Chicago, Illinois, USA
| | - Allison L Goetsch
- Division of Genetics, Birth Defects and Metabolism, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois, USA
- Graduate Program in Genetic Counseling, Northwestern University, Chicago, Illinois, USA
| | - Scott Moses
- Department of Obstetrics and Gynecology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Diane Chen
- Potocsnak Family Division of Adolescent and Young Adult Medicine, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois, USA
- Pritzker Department of Psychiatry and Behavioral Health, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois, USA
- Department of Psychiatry and Behavioral Science, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Courtney Finlayson
- Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Division of Endocrinology, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois, USA
| | - Emilie K Johnson
- Division of Urology, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois, USA
- Department of Urology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Center for Health Services and Outcomes Research, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
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16
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Smet ME, Scott FP, McLennan AC. Discordant fetal sex on NIPT and ultrasound. Prenat Diagn 2020; 40:1353-1365. [PMID: 32125721 DOI: 10.1002/pd.5676] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Revised: 02/23/2020] [Accepted: 02/24/2020] [Indexed: 12/21/2022]
Abstract
Prenatal diagnosis of sex discordance is a relatively new phenomenon. Prior to cell-free DNA testing, the diagnosis of a disorder of sexual differentiation was serendipitous, either through identification of ambiguous genitalia at the midtrimester morphology ultrasound or discovery of genotype-phenotype discordance in cases where preimplantation genetic diagnosis or invasive prenatal testing had occurred. The widespread integration of cfDNA testing into modern antenatal screening has made sex chromosome assessment possible from 10 weeks of gestation, and discordant fetal sex is now more commonly diagnosed prenatally, with a prevalence of approximately 1 in 1500-2000 pregnancies. Early detection of phenotype-genotype sex discordance is important as it may indicate an underlying genetic, chromosomal or biochemical condition and it also allows for time-critical postnatal treatment. The aim of this article is to review cfDNA and ultrasound diagnosis of fetal sex, identify possible causes of phenotype-genotype discordance and provide a systematic approach for clinicians when counseling and managing couples in this circumstance.
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Affiliation(s)
- Maria-Elisabeth Smet
- Sydney Ultrasound for Women, Chatswood, New South Wales, Australia.,Department of Obstetrics and Gynaecology, Royal North Shore Hospital, St Leonards, New South Wales, Australia
| | - Fergus P Scott
- Sydney Ultrasound for Women, Chatswood, New South Wales, Australia.,Department of Obstetrics and Gynaecology, Royal Hospital for Women, Randwick, New South Wales, Australia
| | - Andrew C McLennan
- Sydney Ultrasound for Women, Chatswood, New South Wales, Australia.,Department of Obstetrics and Gynaecology, Royal North Shore Hospital, St Leonards, New South Wales, Australia.,Discipline of Obstetrics, Gynaecology and Neonatology, The University of Sydney Camperdown, Sydney, New South Wales, Australia
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17
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Samura O. Update on noninvasive prenatal testing: A review based on current worldwide research. J Obstet Gynaecol Res 2020; 46:1246-1254. [PMID: 32558079 DOI: 10.1111/jog.14268] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Accepted: 04/11/2020] [Indexed: 12/25/2022]
Abstract
Eight years have passed since noninvasive prenatal testing (NIPT) was clinically evaluated and data on NIPT for trisomy 21, 18 and 13 were collected. The data revealed that NIPT is more accurate than conventional first-trimester screening. However, there is still insufficient data regarding the clinical use of NIPT results in detecting sex chromosome aneuploidies or whole-genome regions. NIPT is already being used as a clinical screening method globally. However, it is an unconfirmed diagnostic test and the results must be interpreted with caution as they may yield false negatives, false positives or inconclusive results. Therefore, the aim of this review is to highlight the current status of information, including the different methodologies, shortcomings and implications, regarding NIPT after its adoption worldwide. It is important to include genetic counseling when implementing NIPT. Going forward, the knowledge obtained to date, including the associated shortcomings, must be considered in evaluating the effectiveness of NIPT in detecting genetic abnormalities.
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Affiliation(s)
- Osamu Samura
- Department of Obstetrics and Gynecology, Jikei University School of Medicine, Tokyo, Japan
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18
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Bowman‐Smart H, Savulescu J, Gyngell C, Mand C, Delatycki MB. Sex selection and non-invasive prenatal testing: A review of current practices, evidence, and ethical issues. Prenat Diagn 2020; 40:398-407. [PMID: 31499588 PMCID: PMC7187249 DOI: 10.1002/pd.5555] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 08/02/2019] [Accepted: 08/25/2019] [Indexed: 12/24/2022]
Abstract
Non-invasive prenatal testing (NIPT) can determine the sex of the fetus very accurately and very early in gestation. There are concerns that the ease, timing, and accuracy of NIPT sex determination will facilitate sex-selective termination of pregnancy (TOP). Here, we review current practices, the evidence for a link between NIPT and sex-selective TOP, and associated ethical issues. Sex-selective TOP, usually motivated by son preference, has had serious demographic consequences in countries such as India and China. Currently, ultrasound is the primary method by which parents determine the sex of the fetus. The diffusion of ultrasound technology has had a direct impact on the rates of sex-selective TOP. Although NIPT is currently more costly, it is feasible that increased uptake of this technology could have a similar effect. Partly because NIPT is a relatively recent development in prenatal screening, there is little data on the impact of NIPT on sex selection practices. Evidence that NIPT is playing a role in sex-selective TOP remains largely anecdotal. Further research is required to assess and quantify TOP resulting from NIPT sex determination. The use of these technologies for sex selection raises a number of ethical issues, in addition to practical demographic consequences.
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Affiliation(s)
- Hilary Bowman‐Smart
- Bruce Lefroy CentreMurdoch Children's Research InstituteMelbourneVictoriaAustralia
- Department of PaediatricsUniversity of MelbourneMelbourneVictoriaAustralia
| | - Julian Savulescu
- Bruce Lefroy CentreMurdoch Children's Research InstituteMelbourneVictoriaAustralia
- Uehiro Centre for Practical EthicsUniversity of OxfordOxfordUK
| | - Christopher Gyngell
- Bruce Lefroy CentreMurdoch Children's Research InstituteMelbourneVictoriaAustralia
- Department of PaediatricsUniversity of MelbourneMelbourneVictoriaAustralia
| | - Cara Mand
- Bruce Lefroy CentreMurdoch Children's Research InstituteMelbourneVictoriaAustralia
| | - Martin B. Delatycki
- Bruce Lefroy CentreMurdoch Children's Research InstituteMelbourneVictoriaAustralia
- Department of PaediatricsUniversity of MelbourneMelbourneVictoriaAustralia
- Victorian Clinical Genetics ServicesMurdoch Children's Research InstituteMelbourneVictoriaAustralia
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19
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Finney EL, Finlayson C, Rosoklija I, Leeth EA, Chen D, Yerkes EB, Cheng EY, Johnson EK. Prenatal detection and evaluation of differences of sex development. J Pediatr Urol 2020; 16:89-96. [PMID: 31864813 PMCID: PMC7871367 DOI: 10.1016/j.jpurol.2019.11.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 11/05/2019] [Indexed: 01/04/2023]
Abstract
INTRODUCTION Differences/disorders of sex development (DSD) can be detected at different ages, including prenatally. The recent implementation of prenatal genetic testing (including cell-free DNA) may affect the frequency and impact of prenatal diagnosis of DSD. Our aims were to (1) describe prenatal detection and evaluation of differences of sex development presenting to a multidisciplinary DSD clinic and (2) explore possible parental distress accompanying this evaluation. MATERIALS AND METHODS A retrospective chart review of mothers presenting prenatally, and patients presenting during infancy, to a multidisciplinary DSD clinic from 2013 to 2017 was conducted. Data extracted included demographics, final diagnoses, prenatal screening, prenatal evaluation, postnatal endocrine, genetic and radiologic testing, and clinician's notes on parent/patient distress. RESULTS Sixty-seven patients were identified; ten (15%) had prenatal detection of a suspected DSD. Of those, 4/10 were detected prenatally in the last study year alone. Within the prenatal group, 6/10 had cell-free DNA results discordant with ultrasound, 2/10 were detected by atypical genitalia on ultrasound, and 2/10 were detected through karyotyping performed for other indications. After birth, 3/10 patients were found to not have a DSD. Final diagnoses for the full study cohort are shown in the Summary Table, comparing prenatal versus postnatal presentation to our DSD clinic. Clinicians noted distress for most parents during the prenatal evaluation of a possible DSD, including one mother who reported suicidal thoughts. DISCUSSION AND CONCLUSIONS Prenatal suspicion of DSD can occur through discordant prenatal testing and has been observed at our clinic in recent years, in line with other recent studies. Contributing factors to these prenatal presentations could be increased referrals to the clinic, and increased use of non-invasive prenatal testing, which can lead to inaccurate or discordant sex identification. The prenatal suspicion of a potential DSD can be associated with parental distress, underscoring the need for adequate counseling for tests that determine fetal sex, including cell-free DNA.
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Affiliation(s)
- Esther L Finney
- Department of Urology, Northwestern University Feinberg School of Medicine, USA
| | - Courtney Finlayson
- Department of Pediatrics, Northwestern University Feinberg School of Medicine, USA; Division of Endocrinology, Ann and Robert H. Lurie Children's Hospital of Chicago, USA
| | - Ilina Rosoklija
- Division of Urology, Ann and Robert H. Lurie Children's Hospital of Chicago, USA
| | - Elizabeth A Leeth
- Graduate Program in Genetic Counseling, Northwestern University, USA; Division of Genetics, Birth Defects and Metabolism, Ann and Robert H. Lurie Children's Hospital of Chicago, USA
| | - Diane Chen
- Potocsnak Family Division of Adolescent and Young Adult Medicine and Department of Child & Adolescent Psychiatry, Ann and Robert H. Lurie Children's Hospital of Chicago, USA; Departments of Psychiatry and Behavioral Sciences, and Pediatrics, Northwestern University Feinberg School of Medicine, USA
| | - Elizabeth B Yerkes
- Department of Urology, Northwestern University Feinberg School of Medicine, USA; Division of Urology, Ann and Robert H. Lurie Children's Hospital of Chicago, USA
| | - Earl Y Cheng
- Department of Urology, Northwestern University Feinberg School of Medicine, USA; Division of Urology, Ann and Robert H. Lurie Children's Hospital of Chicago, USA
| | - Emilie K Johnson
- Department of Urology, Northwestern University Feinberg School of Medicine, USA; Division of Urology, Ann and Robert H. Lurie Children's Hospital of Chicago, USA.
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20
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Wisniewski AB, Batista RL, Costa EMF, Finlayson C, Sircili MHP, Dénes FT, Domenice S, Mendonca BB. Management of 46,XY Differences/Disorders of Sex Development (DSD) Throughout Life. Endocr Rev 2019; 40:1547-1572. [PMID: 31365064 DOI: 10.1210/er.2019-00049] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 07/23/2019] [Indexed: 12/11/2022]
Abstract
Differences/disorders of sex development (DSD) are a heterogeneous group of congenital conditions that result in discordance between an individual's sex chromosomes, gonads, and/or anatomic sex. Advances in the clinical care of patients and families affected by 46,XY DSD have been achieved since publication of the original Consensus meeting in 2006. The aims of this paper are to review what is known about morbidity and mortality, diagnostic tools and timing, sex of rearing, endocrine and surgical treatment, fertility and sexual function, and quality of life in people with 46,XY DSD. The role for interdisciplinary health care teams, importance of establishing a molecular diagnosis, and need for research collaborations using patient registries to better understand long-term outcomes of specific medical and surgical interventions are acknowledged and accepted. Topics that require further study include prevalence and incidence, understanding morbidity and mortality as these relate to specific etiologies underlying 46,XY DSD, appropriate and optimal options for genitoplasty, long-term quality of life, sexual function, involvement with intimate partners, and optimizing fertility potential.
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Affiliation(s)
- Amy B Wisniewski
- Psychology Department, Oklahoma State University, Stillwater, Oklahoma
| | - Rafael L Batista
- Division of Endocrinology, Department of Internal Medicine, University of São Paulo Medical School, University of São Paulo, São Paulo, Brazil
| | - Elaine M F Costa
- Division of Endocrinology, Department of Internal Medicine, University of São Paulo Medical School, University of São Paulo, São Paulo, Brazil
| | - Courtney Finlayson
- Division of Endocrinology, Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Maria Helena Palma Sircili
- Division of Endocrinology, Department of Internal Medicine, University of São Paulo Medical School, University of São Paulo, São Paulo, Brazil
| | - Francisco Tibor Dénes
- Division of Urology, Department of Surgery, University of São Paulo Medical School, University of São Paulo, São Paulo, Brazil
| | - Sorahia Domenice
- Division of Endocrinology, Department of Internal Medicine, University of São Paulo Medical School, University of São Paulo, São Paulo, Brazil
| | - Berenice B Mendonca
- Division of Endocrinology, Department of Internal Medicine, University of São Paulo Medical School, University of São Paulo, São Paulo, Brazil
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21
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Chen M, Jiang F, Guo Y, Yan H, Wang J, Zhang L, Zeng X, Li S, Li Y, Li N, Zhang C, Zhu W, Du B, Wang Y, Lan Z, Luo X, Luo F, Chen D. Validation of fetal DNA fraction estimation and its application in noninvasive prenatal testing for aneuploidy detection in multiple pregnancies. Prenat Diagn 2019; 39:1273-1282. [PMID: 31671222 DOI: 10.1002/pd.5597] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2018] [Revised: 07/12/2019] [Accepted: 09/15/2019] [Indexed: 12/19/2022]
Abstract
OBJECTIVE To analyze the fetal fraction, fetal sex, and chromosomal aneuploidy in multiple pregnancies using noninvasive prenatal testing (NIPT). METHOD A total of 362 pregnant women including 203 singleton pregnancies, 69 twins, and 90 higher-order multiple pregnancies were recruited. Fetal fractions estimated by size ratio-based and Y chromosome-based approaches in singleton pregnancies with male fetus were used as source data to establish the model. The model was then applied to multiple pregnancies for fetal fraction estimation. By comparing the fetal fractions estimated by size ratio to those estimated by Y chromosome or autosomal chromosomes, fetal sex and chromosomal aneuploidy can be analyzed. RESULTS The size ratio-based approach has been well established in estimating fetal fractions for twin and higher-order multiple pregnancies. Fetal fraction had a positive correlation with gestational age in twin and triplet pregnancies. Fetal sex was determined with accuracies of 98.6% (95% CI, 92.19%-99.96%) in twins and 97.6% (95% CI, 91.76%-99.71%) in triplet pregnancies. Four trisomy 21, one trisomy 18, and one trisomy 13 cases were detected by NIPT. Two trisomy 21 singleton pregnancies and one trisomy 21 twin pregnancy were confirmed by karyotyping. CONCLUSION Fetal sex and chromosomal aneuploidy in multiple pregnancies can be determined using NIPT.
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Affiliation(s)
- Min Chen
- Department of Fetal Medicine and Prenatal Diagnosis, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Obstetrics & Gynecology Institute of Guangzhou, Guangzhou, China.,The Medical Centre for Critical Pregnant Women in Guangzhou, Guangzhou, China.,Key Laboratory for Major Obstetric Diseases of Guangdong Province, Guangzhou, China.,Key Laboratory for Reproduction and Genetics of Guangdong Higher Education Institutes, Guangzhou, China
| | - Fuman Jiang
- School of Automation Science and Engineering, South China University of Technology, Guangzhou, China.,Guangzhou Jingke Medical Laboratory, Guangzhou, China.,Shenzhen Jingke Genetic Science and Technology Co., Ltd., Shenzhen, China
| | - Yulai Guo
- Guangzhou Jingke Medical Laboratory, Guangzhou, China
| | - Huanchen Yan
- Department of Fetal Medicine and Prenatal Diagnosis, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Obstetrics & Gynecology Institute of Guangzhou, Guangzhou, China.,The Medical Centre for Critical Pregnant Women in Guangzhou, Guangzhou, China.,Key Laboratory for Major Obstetric Diseases of Guangdong Province, Guangzhou, China.,Key Laboratory for Reproduction and Genetics of Guangdong Higher Education Institutes, Guangzhou, China
| | - Jiayan Wang
- Department of Fetal Medicine and Prenatal Diagnosis, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Obstetrics & Gynecology Institute of Guangzhou, Guangzhou, China.,The Medical Centre for Critical Pregnant Women in Guangzhou, Guangzhou, China.,Key Laboratory for Major Obstetric Diseases of Guangdong Province, Guangzhou, China.,Key Laboratory for Reproduction and Genetics of Guangdong Higher Education Institutes, Guangzhou, China
| | - Longmei Zhang
- Guangzhou Jingke Medical Laboratory, Guangzhou, China
| | - XiaoJing Zeng
- Guangzhou Jingke Medical Laboratory, Guangzhou, China
| | - Sheng Li
- Guangzhou Jingke Medical Laboratory, Guangzhou, China
| | - Yufan Li
- Department of Fetal Medicine and Prenatal Diagnosis, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Obstetrics & Gynecology Institute of Guangzhou, Guangzhou, China.,The Medical Centre for Critical Pregnant Women in Guangzhou, Guangzhou, China.,Key Laboratory for Major Obstetric Diseases of Guangdong Province, Guangzhou, China.,Key Laboratory for Reproduction and Genetics of Guangdong Higher Education Institutes, Guangzhou, China
| | - Nan Li
- Department of Fetal Medicine and Prenatal Diagnosis, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Obstetrics & Gynecology Institute of Guangzhou, Guangzhou, China.,The Medical Centre for Critical Pregnant Women in Guangzhou, Guangzhou, China.,Key Laboratory for Major Obstetric Diseases of Guangdong Province, Guangzhou, China.,Key Laboratory for Reproduction and Genetics of Guangdong Higher Education Institutes, Guangzhou, China
| | | | - Wentao Zhu
- Guangzhou Jingke Medical Laboratory, Guangzhou, China
| | - Bole Du
- Guangzhou Jingke Medical Laboratory, Guangzhou, China
| | - Yang Wang
- Guangzhou Jingke Medical Laboratory, Guangzhou, China
| | - Zhiheng Lan
- Guangzhou Jingke Medical Laboratory, Guangzhou, China
| | - Xingcheng Luo
- Guangzhou Jingke Medical Laboratory, Guangzhou, China
| | - Fei Luo
- School of Automation Science and Engineering, South China University of Technology, Guangzhou, China
| | - Dunjin Chen
- Obstetrics & Gynecology Institute of Guangzhou, Guangzhou, China.,The Medical Centre for Critical Pregnant Women in Guangzhou, Guangzhou, China.,Key Laboratory for Major Obstetric Diseases of Guangdong Province, Guangzhou, China.,Key Laboratory for Reproduction and Genetics of Guangdong Higher Education Institutes, Guangzhou, China
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22
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Ayala NK, Kole MB, Forcier M, Halliday J, Russo ML. Sex discordance between cell-free fetal DNA and mid-trimester ultrasound: a modern conundrum. Prenat Diagn 2019; 40:514-516. [PMID: 31618465 DOI: 10.1002/pd.5576] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 08/27/2019] [Accepted: 09/28/2019] [Indexed: 11/11/2022]
Affiliation(s)
- N K Ayala
- Department of Obstetrics and Gynecology, Division of Maternal Fetal Medicine, Women & Infants Hospital of Rhode Island, Alpert Medical School of Brown University, UnitedStates
| | - M B Kole
- Department of Obstetrics and Gynecology, Division of Maternal Fetal Medicine, Women & Infants Hospital of Rhode Island, Alpert Medical School of Brown University, UnitedStates
| | - M Forcier
- Department of Pediatrics, Division of Adolescent Medicine, Hasbro Children's Hospital, Alpert Medical School of Brown University, UnitedStates
| | - J Halliday
- Department of Obstetrics and Gynecology, Division of Maternal Fetal Medicine, Women & Infants Hospital of Rhode, Island
| | - M L Russo
- Department of Obstetrics and Gynecology, Division of Maternal Fetal Medicine, Women & Infants Hospital of Rhode Island, Alpert Medical School of Brown University, UnitedStates
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23
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De Falco L, Savarese G, Suero T, Amabile S, Ruggiero R, Savarese P, Fico A. Detection of SRY-positive46,XX male syndrome by the analysis of cell-free fetal DNA via non-invasive prenatal testing. Clin Case Rep 2019; 7:1977-1981. [PMID: 31624621 PMCID: PMC6787777 DOI: 10.1002/ccr3.2389] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 07/22/2019] [Accepted: 07/29/2019] [Indexed: 11/12/2022] Open
Abstract
We report a new case of 46,XX male syndrome that was detected following an anomalous result by non-invasive prenatal testing (NIPT) and a discrepancy between the fetal karyotype and the ultrasonographic investigation. With the increasing use of NIPT, more gender discordances can be identified prenatally and be amenable to early therapy.
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Affiliation(s)
| | | | - Teresa Suero
- AMES, Centro Polidiagnostico Strumentale SrlNaplesItaly
| | - Sonia Amabile
- Department of Molecular Medicine and Medical BiotechnologyUniversity of Naples "Federico II"NaplesItaly
| | | | | | - Antonio Fico
- AMES, Centro Polidiagnostico Strumentale SrlNaplesItaly
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24
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Sylvester-Armstrong KR, Rasmussen SA, Shoraka M, Hendrickson JE, Abu-Rustum RS. Fetal sex discordance between noninvasive prenatal screening results and sonography: A single institution's experience and review of the literature. Birth Defects Res 2019; 112:339-349. [PMID: 31566914 DOI: 10.1002/bdr2.1594] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 09/05/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND With the increasing availability of noninvasive prenatal screening (NIPS) and high-resolution ultrasound, more cases of sex discordance are being identified in routine clinical practice. This can be a source of much concern for families and clinicians. Knowledge about the limitations of NIPS and reasons for discordant results are critical for counseling parents. AIMS Here, we present three cases from a single tertiary care referral center. We also review the literature to address potential limitations of NIPS in correctly identifying fetal sex chromosomes. MATERIALS AND METHODS After Institutional Review Board approval, cases of discordant fetal sex were identified using ICD-9 and ICD-10 codes. In addition, departmental counseling database and cytogenetics laboratory logbooks were reviewed. RESULTS In our first case, a 37-year-old G4 P2012 underwent NIPS at 11 weeks gestation and Monosomy X (associated with Turner syndrome) was identified. Morphological sonographic assessment at 20 weeks gestation was consistent with a female fetus following an amniocentesis at 16 weeks that revealed normal 46, XX karyotype. During the third trimester, the patient was diagnosed with Stage IV invasive ductal carcinoma of the breast. Postnatal follow-up of the neonate was consistent with a phenotypic female. In the second case, a 22-year-old G2 P1001 obese female underwent NIPS at 14 weeks gestation and normal 46, XY karyotype was identified. Morphological sonographic assessment at 20 weeks was not consistent with a male fetus. The patient declined invasive testing. Postnatally, the karyotype was 46, XX and the neonate was phenotypically female. The reason for the discordant results was not identified. In the third case, a 25-year-old G1 P0 obese female underwent NIPS at 13 weeks gestation and normal 46, XY karyotype was identified. Morphological sonographic assessment at 20 weeks was indeterminate; however, follow-up at 24 weeks was consistent with a female fetus. The patient declined invasive prenatal testing. Postnatally, the karyotype was 46, XX, and the neonate was phenotypically female with uterus present on ultrasound. The reason for the discordant results was not identified. DISCUSSION Our cases demonstrate possible limitations of NIPS in correctly identifying sex chromosomes. CONCLUSIONS Providers and patients need to be aware of these limitations, and invasive diagnostic prenatal testing should be offered in cases of discordance between NIPS and sonographic sex assessment.
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Affiliation(s)
| | - Sonja A Rasmussen
- Department of Pediatrics, University of Florida College of Medicine, Gainesville, Florida.,Department of Epidemiology, College of Health and Health Professions, University of Florida College of Medicine, Gainesville, Florida
| | - Massoud Shoraka
- Department of Obstetrics and Gynecology, University of Florida College of Medicine, Gainesville, Florida
| | - Jill E Hendrickson
- Department of Thoracic and Cardiovascular Surgery, University of Florida Aortic Disease Center, Gainesville, Florida
| | - Reem S Abu-Rustum
- Department of Obstetrics and Gynecology, University of Florida College of Medicine, Gainesville, Florida
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25
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Abstract
PURPOSE OF REVIEW To provide a framework for the evaluation of ambiguous genitalia. RECENT FINDINGS The most pressing evaluation of ambiguous genitalia is assessment for life-threatening causes such as salt-wasting congenital adrenal hyperplasia (CAH) or syndromes with underlying anomalies such as neurologic or cardiac malformations. A multidisciplinary team, including specialists in Gynecology, Endocrinology, Urology, Genetics, Clinical Psychology/Psychiatry, Radiology, Nursing, Neonatology, and Pediatric Surgery, should be involved. Each patient should be approached in an individualized manner to assign sex of rearing in the most expeditious yet thoughtful means possible.As knowledge on the natural history of sex preference and fertility of individuals with ambiguous genitalia increases, controversy regarding the indication for and timing of genital surgery continues. Considerations include gender identity, future fertility, malignancy risk, infection prevention, and functional anatomy for sexual activity. SUMMARY The evaluation of ambiguous genitalia should involve a multidisciplinary team. A combination of history taking, physical examination, laboratory evaluation, and radiologic assessment can assist with the diagnosis. Care should be taken to emphasize karyotypic sex is not equivalent to gender and to use caution with regards to irreversible medical and surgical therapies which may impact fertility and sexual function and nonconform with future sex identity.
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26
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Fredette ME, Cusmano K, Phornphutkul C, Schwab J, Caldamone A, Topor LS. EARLY-ONSET GONADOBLASTOMA IN A 13-MONTH-OLD INFANT WITH 46,XY COMPLETE GONADAL DYSGENESIS IDENTIFIED WITH PRENATAL TESTING: A CASE OF CHROMOSOME 9p DELETION. AACE Clin Case Rep 2019; 5:e380-e383. [PMID: 31967076 DOI: 10.4158/accr-2019-0285] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 08/08/2019] [Indexed: 11/15/2022] Open
Abstract
Objective Individuals with 46,XY complete gonadal dysgenesis (CGD) are at high risk of developing gonadal neoplasms. Chromosome 9p monosomy with deletion of the DMRT1 gene, a key transcription factor in testicular development, is one of the known causes of 46,XY CGD. Noninvasive prenatal testing (NIPT) is being increasingly used, and can identify disorders of sexual development (DSDs). Methods We report the case of a 46,XY infant with phenotypically female external genitalia, müllerian structures including uterus and fallopian tubes, and bilateral streak gonads who was found to have unilateral gonadoblastoma at 13 months. 46,XY DSD was suggested prenatally when discordance between NIPT and fetal ultrasound was noted. Results Genetic investigation revealed a deletion of 12.5 million base pairs at chromosome 9p24.3, which includes the doublesex and MAB-3-related transcription factor-1 (DMRT1) gene. Conclusion Current guidelines recommend gonadectomy at the time of diagnosis in cases of 46,XY CGD, and our patient had gonadoblastoma at 13 months. 46,XY DSD, including rare disorders such as CGD, will be increasingly identified before birth with more widespread use of NIPT, raising the question about the appropriate timing of gonadectomy in prenatal diagnoses. Our case supports the current recommendation to perform gonadectomy as early as possible after diagnosis.
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27
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Stefanovic V. The importance of pre- and post-test counseling for prenatal cell-free DNA screening for common fetal aneuploidies. Expert Rev Mol Diagn 2019; 19:201-215. [PMID: 30657716 DOI: 10.1080/14737159.2019.1571912] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
INTRODUCTION Prenatal cell-free DNA screening for common fetal aneuploidies has rapidly changed the paradigm of prenatal care. Despite its advantages compared to conventional screening methods, its unexpectedly rapid implementation in clinical practice has generated several ethical and medical issues and misconceptions. Aggressive commercial marketing of cell-free DNA screening and media dissemination of misleading information have added confusion. Areas covered: This review provides an extensive update and will focus on the importance of pre-and post-test counseling for prenatal cell-free DNA screening not previously discussed extensively in the available literature. Additionally, we report cell-free DNA screening implementation in the largest obstetrical tertiary unit in Finland which is one of few countries that provides all prenatal screening methods free of charge for all women and has a very high uptake of first-trimester screening. This is not a systematical review, but rather a narrative overview which includes the most relevant and recent original publications and reviews covering this issue. Expert opinion: Despite being the most accurate method for screening of common fetal aneuploidies, the knowledge and counseling should be substantially improved. Cell-free DNA screening is not a replacement for diagnostic testing and its use in prenatal testing is complex and limited.
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Affiliation(s)
- Vedran Stefanovic
- a Department of Obstetrics and Gynecology , Fetomaternal Medical Center, Helsinki University and Helsinki University Hospital , Helsinki , Finland
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Discordant sex between fetal screening and postnatal phenotype requires evaluation. J Perinatol 2019; 39:28-33. [PMID: 30459335 PMCID: PMC6340391 DOI: 10.1038/s41372-018-0278-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 09/27/2018] [Accepted: 10/16/2018] [Indexed: 12/13/2022]
Abstract
OBJECTIVE Non-invasive prenatal screening (NIPS) utilizes circulating cell-free DNA (cfDNA) to screen for fetal genetic abnormalities. NIPS is the first widely-available prenatal screen to assess genotypic sex. Most pediatricians have limited familiarity with NIPS technology and potential etiologies of discordant results. Increased familiarity may provide diagnostic insight and improve clinical care. STUDY DESIGN We reviewed all patients with discordant genotypic fetal sex assessed by cfDNA and neonatal phenotypic sex referred to our medical center. RESULT Four infants with discordant cfDNA result and phenotypic sex were identified. Etiologies include vanishing twin syndrome, difference of sexual development, sex chromosome aneuploidy and maternal chimerism. CONCLUSIONS We present four cases illustrating potential etiologies of discordant cfDNA result and postnatal phenotypic sex. Unanticipated cfDNA results offer the perinatologist a unique opportunity for early diagnosis and targeted treatment of various conditions, many of which may not have otherwise been detected in the perinatal period.
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