diagnosis. A Robertsonian translocation involves two acrocentric
chromosomes that fuse near the centromere region with the loss of
the short arms. The resulting karyotype shows only 45 chromosomes
in which two chromosomes are fused together. Nevertheless,
there is no direct effect on the individual’s phenotype, because
the genes lost from the short arms of acrocentric chromosomes are
nonessential genes. Robertsonian translocations can involve all
combinations of acrocentric chromosomes. The most common
Robertsonian translocation in humans involves chromosomes 13
and 14, with an estimated incidence of 0.97/1000 newborns [3].
Recurrent miscarriage is often related to carrying either type of
translocation. In couples with two or more consecutive miscarriages,
a rate of 2.3e4.5% for either Robertsonian or reciprocal
translocations has been noted [4,5]. Their subsequent pregnancy
outcome remains poor, with a miscarriage rate ranging from 36.4%