Genetic diagnosis and follow up of a fetus with Emanuel syndrome / 中华医学遗传学杂志
Chinese Journal of Medical Genetics
;
(6): 709-713, 2017.
Artigo
em Chinês
| WPRIM
| ID: wpr-344190
ABSTRACT
<p><b>OBJECTIVE</b>To carry out genetic analysis for a fetus with Dandy-Walker malformation and provide prenatal diagnosis for its parents during the subsequent pregnancy.</p><p><b>METHODS</b>Routine G-banding was carried out to analyze the karyotype of the fetus and its parents, and next-generation sequencing (NGS) and fluorescence in situ hybridization (FISH) were used to verify the result.</p><p><b>RESULTS</b>The father showed a normal karyotype, while the mother was found to carry a balanced t(11; 22) (q23; q11) translocation. NGS and FISH analysis verified that the supernumerary marker chromosome carried by the fetus was der(22) t(11; 22) (q23;q11). The fetus was diagnosed with Emanuel syndrome. During the next pregnancy, the fetus was found to carry the same balanced translocation as its mother. After genetic counseling, the couple decided to continue with the pregnancy, and eventually delivered a healthy baby.</p><p><b>CONCLUSION</b>A fetal case of Emanuel syndrome has been identified. The derivative der(22) t(11; 22)(q23; q11) chromosome probably underlies the Dandy-Walker malformation in the fetus. Combined cytogenetic and molecular analyses can attain a more precise diagnosis for fetal abnormalities detected by ultrasonography.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Diagnóstico Pré-Natal
/
Translocação Genética
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Cromossomos Humanos Par 11
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Cromossomos Humanos Par 22
/
Seguimentos
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Fissura Palatina
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Transtornos Cromossômicos
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Diagnóstico
/
Genética
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Cardiopatias Congênitas
Tipo de estudo:
Estudo diagnóstico
/
Estudo observacional
/
Estudo prognóstico
Limite:
Adulto
/
Feminino
/
Humanos
/
Gravidez
Idioma:
Chinês
Revista:
Chinese Journal of Medical Genetics
Ano de publicação:
2017
Tipo de documento:
Artigo
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