The partial amplification pattern might be compatible with fusion of the involved genes, similar to cases described in dermatofibrosarcoma protuberans, with COL1A1::PDGFB or in case of EWSR1::NFATC2 fusion (EWSR1 pattern of FISH) in round cell sarcomas with EWSR1–non-ETS fusions [32]. Here, COL1A1 is linked to dermatofibrosarcoma protuberans.