However, the frequency of KAT6B-KANSL1 fusion might be higher as it could be a pathogenetic candidate of partially cryptic rearrangements of chromosome band 17q21 in the 34 uterine leiomyomas with cytogenetic aberrations involving the q arm of chromosome 10 (especially in the 25 such tumors with the breakpoint assigned to chromosome band 10q22) reported in the Mitelman Database of Chromosome Aberrations and Gene Fusions in Cancer (http://cgap.nci.nih.gov/Chromosomes/Mitelman, Database last updated on May 13, 2014). This evidence concerns the gene KANSL1 and uterine corpus leiomyoma.