Noninvasive prenatal testing suggesting an abnormality in chromosome 15 confirmed to be a case of Prader-Willi syndrome caused by trisomy rescue in the neonatal period.
J Obstet Gynaecol Res
; 48(8): 2214-2218, 2022 Aug.
Article
em En
| MEDLINE
| ID: mdl-35322506
ABSTRACT
We report a case of a neonatal diagnosis of Prader-Willi syndrome caused by uniparental disomy. A 34-year-old pregnant woman underwent noninvasive prenatal testing (NIPT) in a hospital that was not certified by the Japanese Association of Medical Sciences. The results of trisomy 13, 18, and 21 were negative; however, a possible abnormality in chromosome 15 was indicated by the Z-score. Genetic counseling was not performed; thus, the woman did not understand the implication of this result. Therefore, she continued with the pregnancy and delivered a boy weighing 1892 g with hypogonadism at 38 weeks and 5 days. The infant was diagnosed with Prader-Willi syndrome caused by uniparental disomy derived from trisomy rescue. The NIPT results may have reflected placental mosaicism, emphasizing the importance of understanding the limitations of NIPT due to the presence of congenital chromosomal abnormalities that cannot be detected by NIPT platforms.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Síndrome de Prader-Willi
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Teste Pré-Natal não Invasivo
Tipo de estudo:
Diagnostic_studies
Limite:
Adult
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Female
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Humans
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Infant
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Male
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Newborn
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Pregnancy
Idioma:
En
Ano de publicação:
2022
Tipo de documento:
Article