we present 2 cases of likely rare event. in case 1, 3rd degree consanguineous marriage revealed inv(6) with same break points in parents who were found to be phenotypically normal. the same inv(6) being inherited in progeny but presented with low amh (anti mullerian hormone) and high level of fsh (follicular stimulating hormone) leading to polycystic ovarian syndrome/premature ovarian failure. ...

Thirty-six infants were identified by cytogenetic screening at birth as having balanced rearrangements of their autosomes, and 30 of them took part in a longitudinal study of their development, together with four of their affected sibs. With the exception of one child with a de novo reciprocal translocation who died, all children attended normal schools. Congenital malformations and short statu...

Familial apparently balanced translocations (ABTs) segregating with discordant phenotypes are extremely challenging for interpretation and counseling due to the scarcity of publications and lack of routine techniques for quick investigation. Recently, next generation sequencing has emerged as an efficacious methodology for precise detection of translocation breakpoints. However, studies so far ...

Three males with Robertsonian translocations were found in a sample of 1115 males examined for military service. One was a 14/15 translocation, and two were 13/14 translocations. One was spontaneous and two familial. The segregation rate of the translocations did not deviate significantly from unity in the sibships where the mother was the carrier, whereas all five children had the translocatio...

Robertsonian and reciprocal chromosomal translocations are the most frequent type of structural chromosomal aberrations in the human population. We report the frequency and type of detected translocations in 10 years of prenatal diagnosis of 3800 prenatal samples. The materials came from amniocentesis and chorionic villus samples (CVS). We detected seven Robertsonian translocations (0.18%), eig...

Unbalanced and balanced Y;autosome translocations are rare structural rearrangements that constitute a heterogeneous group. According to Nielsen and Rasmussen, the frequency of these translocations in the general population is approximately 1 in 2000 (six cases out of 11 148 newborn infants). All these six cases were in an unbalanced form. In the majority of cases, there is a non-reciprocal tra...

KEY CLINICAL MESSAGE Translocations between X and acrocentric chromosomes are rare. We report on the inheritance of a familial t(X;15)(p22.3;p10) translocation in a fetus referred for short long bones. Cytogenetic analysis revealed an unbalanced translocation combined with a three-gene nullosomy. After genetic counseling, a prognosis was established and a healthy boy was delivered.

Wolf-Hirschhorn syndrome is a genetic condition that affects many systems of the human body. It caused by deletion band 4p16.3 and this may be sub microscopic. Individuals affected have special phenotype: wide bridge nose, widely spaced eyes, micrognathia, microcephaly, growth retardation, cryptorchidism, heart defects, hearing loss severe intellectual disability. A familial translocation seen ...

A family showing a complex translocation between chromosomes 7, 8, and 9 with breakpoints at 7q21, 7q33, 8p23, and 9p23 is described. The proband had been referred because of repeated spontaneous abortions. This is only the second family to be ascertained in this way. Twenty-three other cases of complex translocations are briefly reviewed, eight of which were de novo in origin and 15 familial. ...