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Hoyas PC, Tárrega ER, Vázquez Rodríguez S, Quiroga de la Cruz R, Diago Almela V, Perales Marín A. Monozygotic twins discordant for trisomy 4: a case report and a literature review. J OBSTET GYNAECOL 2020; 41:147-149. [PMID: 32657184 DOI: 10.1080/01443615.2019.1650013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Paula Calvo Hoyas
- Department of Obstetrics and Gynaecology, Maternal-Fetal Medicine, University Hospital La Fe, Valencia, Spain
| | - Elisabet Rodríguez Tárrega
- Department of Obstetrics and Gynaecology, Maternal-Fetal Medicine, University Hospital La Fe, Valencia, Spain
| | - Sheila Vázquez Rodríguez
- Department of Obstetrics and Gynaecology, Maternal-Fetal Medicine, University Hospital La Fe, Valencia, Spain
| | - Ramiro Quiroga de la Cruz
- Department of Obstetrics and Gynaecology, Maternal-Fetal Medicine, University Hospital La Fe, Valencia, Spain
| | - Vicente Diago Almela
- Department of Obstetrics and Gynaecology, Maternal-Fetal Medicine, University Hospital La Fe, Valencia, Spain
| | - Alfredo Perales Marín
- Department of Obstetrics and Gynaecology, Maternal-Fetal Medicine, University Hospital La Fe, Valencia, Spain
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Grati FR. Implications of fetoplacental mosaicism on cell-free DNA testing: a review of a common biological phenomenon. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2016; 48:415-423. [PMID: 27240559 DOI: 10.1002/uog.15975] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Revised: 05/16/2016] [Accepted: 05/24/2016] [Indexed: 06/05/2023]
Affiliation(s)
- F R Grati
- Research and Development, Cytogenetics and Medical Genetics Unit, TOMA Advanced Biomedical Assays S.p.A., Busto Arsizio, Varese, Italy .
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3
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Bouman A, van der Kevie-Kersemaekers AM, Huijsdens-van Amsterdam K, Dahhan N, Knegt L, Vansenne F, Cobben JM. Trisomy 4 mosaicism: Delineation of the phenotype. Am J Med Genet A 2016; 170A:1040-5. [DOI: 10.1002/ajmg.a.37522] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Accepted: 12/07/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Arjan Bouman
- Department of Clinical Genetics; Academic Medical Center; Amsterdam The Netherlands
| | | | | | - Nordin Dahhan
- Department of Paediatrics; Academic Medical Center; Amsterdam The Netherlands
| | - Lia Knegt
- Department of Clinical Genetics; Academic Medical Center; Amsterdam The Netherlands
| | - Fleur Vansenne
- Department of Clinical Genetics; University Medical Center Groningen; Groningen The Netherlands
| | - Jan Maarten Cobben
- Department of Paediatrics; Academic Medical Center; Amsterdam The Netherlands
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4
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Malvestiti F, Agrati C, Grimi B, Pompilii E, Izzi C, Martinoni L, Gaetani E, Liuti MR, Trotta A, Maggi F, Simoni G, Grati FR. Interpreting mosaicism in chorionic villi: results of a monocentric series of 1001 mosaics in chorionic villi with follow-up amniocentesis. Prenat Diagn 2015. [DOI: 10.1002/pd.4656] [Citation(s) in RCA: 99] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Francesca Malvestiti
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays S.p.A.; Busto Arsizio VA Italy
| | - Cristina Agrati
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays S.p.A.; Busto Arsizio VA Italy
| | - Beatrice Grimi
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays S.p.A.; Busto Arsizio VA Italy
| | - Eva Pompilii
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays S.p.A.; Busto Arsizio VA Italy
- GYNEPRO; V.le Carducci, 2/3 Bologna Italy
| | - Claudia Izzi
- UO Diagnosi Prenatale; Azienda Ospedaliera Spedali Civili; Brescia Italy
| | - Lorenza Martinoni
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays S.p.A.; Busto Arsizio VA Italy
| | - Elisa Gaetani
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays S.p.A.; Busto Arsizio VA Italy
| | - Maria Rosaria Liuti
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays S.p.A.; Busto Arsizio VA Italy
| | - Anna Trotta
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays S.p.A.; Busto Arsizio VA Italy
| | - Federico Maggi
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays S.p.A.; Busto Arsizio VA Italy
| | - Giuseppe Simoni
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays S.p.A.; Busto Arsizio VA Italy
| | - Francesca Romana Grati
- Research and Development, Cytogenetics and Molecular Biology; TOMA Advanced Biomedical Assays S.p.A.; Busto Arsizio VA Italy
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Marcelis C, de Blaauw I, Brunner H. Chromosomal anomalies in the etiology of anorectal malformations: A review. Am J Med Genet A 2011; 155A:2692-704. [DOI: 10.1002/ajmg.a.34253] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2010] [Accepted: 07/17/2011] [Indexed: 11/10/2022]
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Peng HH, Kuo PL, Chao AS, Wang TH, Chang YL, Soong YK, Chang SD. Discordant semilobar holoprosencephaly in monozygotic twins with de novo inv dup(15) marker chromosome and de novo mutation on SHH gene. Fetal Diagn Ther 2007; 22:389-93. [PMID: 17556830 DOI: 10.1159/000103302] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2006] [Accepted: 08/08/2006] [Indexed: 11/19/2022]
Abstract
We present a 30-year-old woman with a twin pregnancy, 1 fetus displaying a small head circumference, semilobar holoprosencephaly, and cleft lip as detected by ultrasound at 23 weeks of gestation. Fetal magnetic resonance imaging confirmed the diagnosis of semilobar holoprosencephaly. The other twin, however, had an appropriate fetal growth, devoid of any major structural anomalies. Karyotyping by G-banding of amniocentesis specimens in both fetuses showed 47,XY,+mar. Fluorescence in situ hybridization showed in the marker chromosome positive dicentric signals for the chromosome 15 centromere-specific alpha satellite DNA probe (D15Z1) and negative signals for the SNRPN probe (15q11-13), thus establishing a cytogenetic diagnosis of 47,XX,+mar.ish idic(15)(q11-q13)(D15Z1++,SNRPN-) for both fetuses. The parental karyotypes were normal. The fetuses, therefore, had a de novo inv dup(15) marker chromosome without involvement of the Prader-Willi region. Short tandem repeat markers (total 15 markers) confirmed that the fetuses were monozygotic twins. Short tandem repeat markers at the 15q region (total 6 markers) excluded the possibility of uniparental disomy (15) mat or uniparental disomy (15) pat. Molecular study in both fetuses of TGIF, SHH, SIX3, and ZIC2 genes revealed a heterozygous 1085 C > T (Ser 362 Leu) on the SHH gene, but a homozygous 1085 C > C (Ser 362 Ser) for both parents on the SHH gene. The couple decided to terminate the pregnancy at 26 weeks of gestation. To our knowledge, this is the first report of semilobar holoprosencephaly with inv dup(15) marker chromosome and missense SHH gene mutation 1085 C > T (Ser 362 Leu).
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Affiliation(s)
- Hsiu-Huei Peng
- Department of Obstetrics and Gynecology, Chang Gung Memorial Hospital, Lin-ko Medical Center, Tao-Yuan, Taiwan
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Ozcan K, Gürbulak K, Takçi I, Ozen H, Kaçar C, Pancarci MS. Atypical cyclopia in a brown swiss cross calf: a case report. Anat Histol Embryol 2006; 35:152-4. [PMID: 16677208 DOI: 10.1111/j.1439-0264.2005.00639.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In this report, an atypical form of cyclopia is described in a stillborn Brown Swiss cross male calf. The changes were confined to the head. The most significant malformation was the presence of a median orbita-like opening that did not contain an eyeball. Other defects included prosencephalic aplasia, brachygnathia superior and arrhinia. The possible cause of this congenital defect could not be ascertained.
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Affiliation(s)
- K Ozcan
- Department of Pathology, Faculty of Veterinary Medicine, Univeristy of Kafkas, 36100-Kars, Turkey.
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Karmous-Benailly H, Tabet AC, Thaly A, Dupuy O, Huten Y, Luton D, Baumann C, Delezoide AL. Prenatal diagnosis of trisomy 4p: a new locus for holoprosencephaly? Prenat Diagn 2005; 25:193-7. [PMID: 15791668 DOI: 10.1002/pd.1102] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Trisomy of the short arm of chromosome 4 is a well-known syndrome, and several observations have been made in the last 30 years. Herein, we report a new observation of trisomy 4p in a fetus with a semi-lobar holoprosencephaly (HPE), dysmorphic features and multiple malformations. The diagnosis of HPE was made, at 33 weeks' gestation, on the fetus of a healthy G1P0 woman. Amniocentesis was performed for chromosome analysis and additional material was found on a chromosome 22. The couple elected to terminate the pregnancy and fetal examination was realized. Conventional and molecular cytogenetic studies were performed on the fetus and the parents, which showed that the additional material found on one chromosome 22 corresponded to the short arm of chromosome 4 and therefore led us to establish a diagnosis of trisomy 4p inherited from the malsegregation of a paternal translocation t(4;22)(q12;q11.1). The etiology of HPE is very heterogeneous; it includes non-genetic factors such as maternal diabetes and genetic causes. HPE cases have been described in association with many chromosomal anomalies, trisomy 13 being the most frequent. However, to our knowledge, HPE has never been previously reported in association with a trisomy involving solely the short arm of chromosome 4.
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Chen CP, Chern SR, Lee CC, Chang TY, Wang W, Tzen CY. Clinical, cytogenetic, and molecular findings of prenatally diagnosed mosaic trisomy 4. Prenat Diagn 2004; 24:38-44. [PMID: 14755408 DOI: 10.1002/pd.792] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVES To present the clinical, cytogenetic, and molecular findings of prenatally diagnosed mosaic trisomy 4. CASE An amniocentesis was performed at 21 weeks' gestation because of maternal anxiety. Cytogenetic analysis revealed mosaicism for trisomy 4, 47,XX,+4[4]/46,XX[16]. Level II ultrasound demonstrated tetralogy of Fallot. Repeated amniocentesis at 23 weeks' gestation revealed 47,XX,+4[4]/46,XX[19]. The pregnancy was terminated. Phenotypic findings included tetralogy of Fallot, hypertelorism, micrognathia, abnormal ears, duplicated phalanges of the left thumb, clinodactyly, and overlapping of the toes. The karyotype of the cord blood was 46,XX. Cytogenetic analyses of the multiple tissue samplings showed a karyotype of 47,XX,+4 in 40/40 cells of the amniotic membrane (amnion), and 47,XX,+4/46,XX with various levels of trisomy 4 in the cells of the liver, lungs, placenta, skin, and umbilical cord. The levels of trisomy 4 were 11/40 in the liver, 8/40 in the lungs, 31/40 in the placenta, 9/40 in the skin, and 8/40 in the umbilical cord. METHOD The parental origin and meiotic origin of trisomy 4 were determined by examining the amniotic membrane using quantitative fluorescent polymerase chain reaction assays with polymorphic markers specific for chromosome 4. The result was consistent with a paternal meiosis I nondisjunction error. The cord blood showed a biparental inheritance. An extra paternal heterozygous allele with partial dosage increase was noted in other fetal and extraembryonic tissues studied. CONCLUSION A diagnosis of trisomy 4 mosaicism in amniocytes indicates an increased risk for fetal abnormalities. Associated abnormal findings include congenital heart defects and anomalies of the digits and thumb. A confirmatory placental sampling may be helpful, whereas a fetal blood sampling is of a very limited value. A postnatal amnion sampling may provide additional clues to the fetal involvement of trisomy 4.
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Affiliation(s)
- Chih-Ping Chen
- Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei, Taiwan, Republic of China.
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Wieczorek D, Prott EC, Robinson WP, Passarge E, Gillessen-Kaesbach G. Prenatally detected trisomy 4 and 6 mosaicism--cytogenetic results and clinical phenotype. Prenat Diagn 2003; 23:128-33. [PMID: 12575019 DOI: 10.1002/pd.557] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
We report on a live-born male with 46,XY/47,XY+4/47,XY,+6 mosaicism. Trisomy 4 mosaicism was detected by karyotyping chorionic villus samples (CVS) and was confirmed by the analysis of 16 metaphases obtained from cultured amniotic fluid cells. Eight metaphases were normal (46,XY), two had trisomy 4 (47,XY,+4), and two had trisomy 6 (47,XY,+6). Two postnatal chromosomal analyses of blood lymphocytes at birth and at the age of one week were normal. Chromosomal analysis of cultured skin fibroblasts from the right inguinal region at the age of 12 months revealed trisomy 4 (47,XY,+4) in 49 metaphases, trisomy 6 (47,XY,+6) in 2 metaphases, and a normal karyotype (46,XY) in 49 cells of the 100 analyzed metaphases, respectively. The main clinical findings consist of prenatal growth retardation, hypoplasia of the right side of the face, a dysplastic and posteriorly rotated right ear, a high vaulted palate, retrognathia, aplasia of the right thumb, hypoplasia of the fingernails, a deep sacral dimple, and patchy skin hypopigmentation of the right leg. When last seen at the age of 14 months, his development was nearly normal. Five patients with trisomy 4 mosaicism have been reported previously, but none with an additional trisomy 6 mosaicism.
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Affiliation(s)
- Dagmar Wieczorek
- Institut für Humangenetik, Universitätsklinikum Essen, Hufelandstrasse 55, 45122 Essen, Germany.
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Kuchinka BD, Barrett IJ, Moya G, Sánchez JM, Langlois S, Yong SL, Kalousek DK, Robinson WP. Two cases of confined placental mosaicism for chromosome 4, including one with maternal uniparental disomy. Prenat Diagn 2001; 21:36-9. [PMID: 11180238 DOI: 10.1002/1097-0223(200101)21:1<36::aid-pd979>3.0.co;2-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Two cases of trisomy 4 mosaicism are reported including one with molecularly confirmed uniparental disomy (UPD) of chromosome 4. Cytogenetic analysis of a chorionic villus sample (CVS) in Case 1 showed complete trisomy 4 in trophoblast and diploidy in chorionic stroma. Amniotic fluid analysis demonstrated a 46,XX complement. After intrauterine fetal death at 30 weeks, molecular analysis confirmed the presence of trisomy 4 of maternal meiotic origin, while fetal tissues showed maternal UPD for chromosome 4. Cultured CVS in Case 2 revealed trisomy 4 in 2/30 cells analyzed. This pregnancy resulted in a healthy livebirth with biparental inheritance of chromosome 4. Molecularly confirmed UPD4 has not been previously reported, and therefore, although the adverse outcome in Case 1 is likely due to the trisomy 4 in the placenta, an imprinting effect associated with UPD4 cannot be excluded.
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Affiliation(s)
- B D Kuchinka
- Department of Medical Genetics, University of British Columbia, Vancouver, BC, Canada
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