FGFR1 and sarcoma: These novel fusions were discovered during the molecular work-up of uterine mesenchymal tumors that were morphologically and/or immunophenotypically similar to the NTRK-fusion sarcoma and inflammatory myofibroblastic tumor (IMT), which expand the homology between RET- and FGFR1-fusion sarcomas and NTRK-fusion sarcomas and IMT.