E. Back et al., DE-NOVO DUPLICATION OF 7PTER-]P21.2 AND DELETION OF 9PTER-]P23.5 - CLINICAL AND CYTOGENETIC DIAGNOSIS, Clinical genetics, 51(1), 1997, pp. 56-60
We report on a male patient with a de novo derivative chromosome 9. Fr
om clinical and conventional cytogenetic data, it was assumed that the
derivative chromosome might be caused by a translocation between the
short arms of chromosomes 7 and 9: der(9)t(7;9)(p21.2;p23.5). Fluoresc
ence in situ hybridization with a chromosome 7-specific and a chromoso
me 9-specific paint confirmed this supposition. The phenotype of the p
atient described is compared to cases in the literature.