Fluorescence In Situ Hybridization and single nucleotide polymorphism of a new case with inv dup del(8p): Inverted duplication deletion of 8p [inv dup del(8p)] is a complex chromosome rearrangement leading among others to deletion of the chromosome region distal to the duplication in 8p. A new case with an inverted duplication deletion of 8p and the results of SNP-array analysis and fluorescence in situ hybridization (FISH) are reported here. Our results are in concordance with earlier reported inv dup del(8p) cases.