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Chen CP, Lin CJ, Chen SW, Wu FT, Chern SR, Wu PS, Chen YY, Chen WL, Wang W. Prenatal diagnosis and molecular cytogenetic characterization of mosaicism for a small supernumerary marker chromosome derived from 2q11.1-q12.1 associated with fetal bilateral radial dysplasia. Taiwan J Obstet Gynecol 2021; 59:941-944. [PMID: 33218417 DOI: 10.1016/j.tjog.2020.09.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/28/2020] [Indexed: 10/23/2022] Open
Abstract
OBJECTIVE We present prenatal diagnosis and molecular cytogenetic characterization of mosaicism for a small supernumerary marker chromosome (sSMC) derived from 2q11.1-q12.1 associated with fetal bilateral radial dysplasia. CASE REPORT A 27-year-old woman underwent amniocentesis at 18 weeks of gestation because of club hands on fetal ultrasound. The internal organs of the fetus were normal. Amniocentesis revealed a karyotype of 47,XY,+mar [13]/46,XY [11]. The parental karyotypes were normal. Simultaneous array comparative genomic hybridization (aCGH) analysis of the DNA extracted from uncultured amniocytes revealed the result of arr 2q11.1q12.1 (95,529,039-102,825,556) × 3.0 [GRCh37 (hg19)]. The pregnancy was terminated at 20 weeks of gestation, and a malformed fetus was delivered with isolated bilateral radial dysplasia. The cord blood had a karyotype of 47,XY,+mar[24]/46,XY[16]. Polymorphic DNA marker analysis of the DNAs extracted from umbilical cord and parental bloods excluded uniparental disomy for chromosome 2. Metaphase fluorescence in situ hybridization analysis confirmed an sSMC derived from chromosome 2q11.1-q12.1 in cultured amniocytes. CONCLUSION High-level mosaicism for an sSMC derived from chromosome 2q11.1-q12.1 can be associated with fetal abnormalities.
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Affiliation(s)
- Chih-Ping Chen
- Department of Obstetrics and Gynecology, MacKay Memorial Hospital, Taipei, Taiwan; Department of Medical Research, MacKay Memorial Hospital, Taipei, Taiwan; School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan; Institute of Clinical and Community Health Nursing, National Yang-Ming University, Taipei, Taiwan; Department of Obstetrics and Gynecology, School of Medicine, National Yang-Ming University, Taipei, Taiwan.
| | - Chen-Ju Lin
- Department of Obstetrics and Gynecology, MacKay Memorial Hospital, Taipei, Taiwan; Department of Medicine, MacKay Medical College, New Taipei City, Taiwan
| | - Shin-Wen Chen
- Department of Obstetrics and Gynecology, MacKay Memorial Hospital, Taipei, Taiwan
| | - Fang-Tzu Wu
- Department of Obstetrics and Gynecology, MacKay Memorial Hospital, Taipei, Taiwan
| | - Schu-Rern Chern
- Department of Medical Research, MacKay Memorial Hospital, Taipei, Taiwan
| | | | - Yun-Yi Chen
- Department of Medical Research, MacKay Memorial Hospital, Taipei, Taiwan
| | - Wen-Lin Chen
- Department of Obstetrics and Gynecology, MacKay Memorial Hospital, Taipei, Taiwan
| | - Wayseen Wang
- Department of Medical Research, MacKay Memorial Hospital, Taipei, Taiwan
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Sevilla-Montoya R, Aguinaga M, Martínez A, Razo G, Molina B, Frías S, Grether P. Heterogeneous Diagnoses Underlying Radial Ray Anomalies. Indian J Pediatr 2017; 84:200-205. [PMID: 27987078 DOI: 10.1007/s12098-016-2270-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Accepted: 11/23/2016] [Indexed: 10/20/2022]
Abstract
OBJECTIVE To review perinatal Radial Ray Anomaly (RRA) cases born at the National Institute of Perinatology, Mexico, and to reveal the heterogeneous diagnoses of these patients. METHODS All patients with RRA over a 18 mo period were included; 4/15 were detected prenatally and 11/15 postnatally. Karyotype was performed for all patients with bilateral RRA; and chromosomal breakage analysis, when the karyotype was normal. RESULTS Fifteen RRA patients were identified: one with trisomy 18, three with an isolated defect, six with monogenic disease, four with a genetic association and one with diabetic embryopathy. Five were stillborn and two died during the early neonatal period; all of whom presented with multiple defects. Three of the live born patients and one stillborn with multiple defects had Fanconi anemia. RRAs carry a high perinatal mortality rate (47%) when they occur in association with other defects. CONCLUSIONS The assessment of these patients needs to involve the combined use of ultrasound, clinical, genetic, cytogenetic and molecular testing. The present results indicate that the chromosome breakage test should always be performed to rule out Fanconi anemia in this group.
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Affiliation(s)
- Rosalba Sevilla-Montoya
- Departamento de Genética, Instituto Nacional de Perinatología, Montes Urales 800 Col. Lomas Virreyes, C.P 11000, Torre de investigación 2°, Piso, Ciudad de México, CP 11000, Mexico.
| | - Mónica Aguinaga
- Departamento de Genética, Instituto Nacional de Perinatología, Montes Urales 800 Col. Lomas Virreyes, C.P 11000, Torre de investigación 2°, Piso, Ciudad de México, CP 11000, Mexico
| | - Alejandro Martínez
- Departamento de Genética, Instituto Nacional de Perinatología, Montes Urales 800 Col. Lomas Virreyes, C.P 11000, Torre de investigación 2°, Piso, Ciudad de México, CP 11000, Mexico
| | - Guadalupe Razo
- Departamento de Genética, Instituto Nacional de Perinatología, Montes Urales 800 Col. Lomas Virreyes, C.P 11000, Torre de investigación 2°, Piso, Ciudad de México, CP 11000, Mexico
| | - Bertha Molina
- Laboratorio de Citogenética, Instituto Nacional de Pediatría/Instituto de Investigaciones Biomédicas UNAM, Insurgentes Sur 3700, Letra C, Col. Insurgentes Cuicuilco, CP 4530, Ciudad de México, Mexico
| | - Sara Frías
- Laboratorio de Citogenética, Instituto Nacional de Pediatría/Instituto de Investigaciones Biomédicas UNAM, Insurgentes Sur 3700, Letra C, Col. Insurgentes Cuicuilco, CP 4530, Ciudad de México, Mexico
| | - Patricia Grether
- Departamento de Genética, Instituto Nacional de Perinatología, Montes Urales 800 Col. Lomas Virreyes, C.P 11000, Torre de investigación 2°, Piso, Ciudad de México, CP 11000, Mexico
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Current world literature. Curr Opin Obstet Gynecol 2010; 22:166-75. [PMID: 20216348 DOI: 10.1097/gco.0b013e328338c956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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De Vivo A, Giacobbe A, De Vivo D, Lo Jacono G, Mancuso A. Usefulness of three-dimensional ultrasonography in the prenatal evaluation of acromelic deviations. JOURNAL OF CLINICAL ULTRASOUND : JCU 2009; 37:399-400. [PMID: 19455699 DOI: 10.1002/jcu.20586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
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