<qa>  What is the chromosome 8q of specific interest?Genomic DNA is isolated from optimal cutting temperature OCT-embedded tissue and analyzed using comparative genomic hybridization. The chromosomal changes identified by this method are compared to those identified using the Taqman method, a quantitative genomic polymerase chain reaction analysis. Chromosome 8q is of specific interest. Other chromosomal changes may be detected in chromosomes 3q, 7q, 16q, andor 17pter-q21. 