Repetitive Pregnancy Loss in inv(22)(p13q12) Carrier.
- Author:
Do Hoon KIM
1
;
Jung Sook HA
;
Jeong Ho RHEE
Author Information
1. Department of Laboratory Medicine, Keimyung University School of Medicine, Daegu, Korea. ksksmom@dsmc.or.kr
- Publication Type:Case Report
- Keywords:
Recombinant;
inv(2);
Partial trisomy 22;
Repetitive pregnancy loss
- MeSH:
Abortion, Spontaneous;
Chromosomes, Human, Pair 22;
Complement System Proteins;
Female;
Fluorescence;
Humans;
Hydrops Fetalis;
In Situ Hybridization;
Karyotyping;
Pregnancy
- From:Journal of Genetic Medicine
2010;7(1):78-81
- CountryRepublic of Korea
- Language:English
-
Abstract:
Pericentric inversion is not rare in humans and is usually benign. However, pericentric inversion can lead to production of an unbalanced recombinant and might be a cause of repetitive pregnancy loss. Pericentric inversion of chromosome 22 is rare and only a few cases have been reported. We report a case of inv(22)(p13q12) carrier who had history of repetitive pregnancy loss including three spontaneous abortions and one fetal hydrops in which the chromosomal complement was rec(22)dup(22q) inv(22)(p13q12)mat. The maternal inv(22) and fetal rec(22) were confirmed by fluorescence in situ hybridization using region-specific probes (TUPLE1 on 22q11.2 and ARSA on 22q13). Because the identification of inv(22) or rec(22) in conventional karyotyping might be easily overlooked, great attention and additional molecular tests are required for accurate diagnosis of inv(22) and rec(22).
