Trisomy clustering diagram. Each row represents results from a single patient. The left column represents ploidy categories. The lighter color represents patients with nonhyperdiploid myeloma, whereas the darker color represents hyperdiploid myeloma. Each right column represents one of the commonly trisomic chromosomes, chromosomes 3, 9, 11, 15, and 19, with pale and dark bars representing the presence and absence of trisomy, respectively, for each chromosome.