[Genetic analysis of a fetus with mosaicism of 13q inversion duplication].
Zhonghua Yi Xue Yi Chuan Xue Za Zhi
; 39(1): 76-80, 2022 Jan 10.
Article
em Zh
| MEDLINE
| ID: mdl-34964973
ABSTRACT
OBJECTIVE:
To report on a case of mosaicism 13q inversion duplication, analyze its mechanism, and discuss the correlation between its genotype and phenotype.METHODS:
Amniotic fluid and umbilical cord blood were collected at 23 and 32 weeks of gestation, respectively. Combined with G-banding chromosome karyotyping analysis, single nucleotide polymorphism array (SNP-array) and fluorescence in situ hybridization (FISH) were used to confirm the result.RESULTS:
The karyotype of the fetus was determined as 47,XY,+inv dup(13)(q14.3q34)/46,XY. After careful counseling, the couple decided to continue with the pregnancy, and had given birth to a boy at 40 weeks' gestation. Except for a red plaque (hemangioma) on the nose bridge, no obvious abnormality (intelligence to be evaluated) was discovered.CONCLUSION:
To provide reference for clinical genetic counseling and risk assessment, the location and proportion of new centromere formation should be fully considered in the case of mosaicism 13q inversion duplication.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Amniocentese
/
Mosaicismo
Idioma:
Zh
Ano de publicação:
2022
Tipo de documento:
Article