Interstitial 3p deletion in a child due to paternal paracentric inserted inversion

Area of Science:

• Genetics and developmental biology.

Background:

• Infants can present with multiple congenital anomalies and developmental delays.
• Chromosomal abnormalities are a known cause of these conditions.

Purpose of the Study:

• To investigate the genetic cause of developmental delay and anomalies in an infant.
• To identify the chromosomal abnormality responsible for the infant's condition.

Main Methods:

• Karyotyping of the infant and the father.
• Analysis of chromosomal structure, specifically focusing on chromosome 3.

Main Results:

• The infant was diagnosed with an interstitial deletion of band p14 on the proximal short arm of chromosome 3.
• The father's karyotype revealed a paracentric inversion in chromosome 3.

Conclusions:

• The infant's deletion likely resulted from a recombination event within the father's paracentric inversion.
• This case highlights the importance of parental karyotyping in diagnosing chromosomal abnormalities in children.