J Genet Med.  2017 Jun;14(1):34-37. 10.5734/JGM.2017.14.1.34.

Prenatal diagnosis of 5p deletion syndrome: A case series report

• Han YJ
• Kwak DW

• KMID: 2386608
• DOI: http://doi.org/10.5734/JGM.2017.14.1.34

Abstract

5p deletion syndrome, also known as Cri-du-Chat syndrome, is a chromosomal abnormality caused by a deletion in the short arm of chromosome 5. Clinical features of 5p deletion syndrome are difficult to identify prenatally by ultrasound examination, thus most cases of 5p deletion syndrome have been diagnosed postnatally. Here, we report eight cases of 5p deletion syndrome diagnosed prenatally, but were unable to find common prenatal ultrasound findings among these cases. However, we found that several cases of 5p deletion syndrome were confirmed prenatally when karyotyping was performed on the basis of abnormal findings in a prenatal ultrasound scan. Hence, it is necessary to carefully perform prenatal ultrasonography for detection of rarer chromosomal abnormalities as well as common aneuploidy.

Keyword

5p deletion syndrome; Cri-du-Chat syndrome; 5p minus syndrome; Chromosome 5

MeSH Terms

Aneuploidy
Arm
Chromosome Aberrations
Chromosomes, Human, Pair 5
Cri-du-Chat Syndrome*
Karyotyping
Prenatal Diagnosis*
Ultrasonography
Ultrasonography, Prenatal