NCIt definition : A fusion gene that results from a chromosomal rearrangement that fuses exon 17 of
the CLTC gene on the long arm of chromosome 17 in frame with exon 2 of the FOSB gene
on the long arm of chromosome 19. This rearrangement is associated with pseudomyogenic
hemangioendothelioma and deregulation of protein fosB transcriptional activation activity.;