In addition to the NUTM1 fusion genes in the above cited carcinomas, recent studies have found NUTM1 fusion genes in malignancies with undifferentiated  spindle cell, round cell, and epithelioid cell-like features which are regarded as  sarcomas. Sarcomas with NUTM1 fusion genes typically a) occur in some sites were sarcomas otherwise rarely develop and b) consist of tumor cells that express a NUTM1 gene fused to one of the MADS-box gene family genes (i.e. a MXD4, MGA, or MXD1 gne), or, alternatively, a BRD4, ZNF532, or CIC gene. A recent review listed the follow NUTM1 fusion gene-associated sarcomas:
* Colorectal sarcomas: Six cases, all with a MXD4-NUTM1 fusion gene.
* Lung sarcomas: Four cases, one each with a BRD4-NUTM1, MDX4-NUTM1, CIC-NUTM1, or MGA-NUTM1 fusion gene.
* Kidney sarcomas: Three cases, two with a BRD4-NUTM1 and one with a CIC-NUTM1 fusion gene.
* Sarcomas of the extremities: Two cases of foot sarcomas, one with a MGA-NUTM1 and one with a X-NUTM1 (i.e. X indicates the fusion partner is not identified)  fusion gene; two cases of thigh sarcomas, one with a BRD4-NUTM1 and the other with a MGA-NUTM1 fusion gene; and one case of an arm sarcoma with a BCORL1-NUTM1 fusion gene (BCORL1 is the BCL6 corepressor like 1 gene).
* Bone sarcomas: One case of mandible sarcoma with a ZNF532-NUTM1 fusion gene and one case each of temporal bone and occipital bone sarcomas (both of which were also in nearby brain tissues) with a CIC-NUTM1 fusion gene.
* Other sites: One case each of: stomach sarcoma with a MXD1-NUTM1 fusion gene; brain parietal cortex sarcoma with a BRD4-NUTM1 fusion gene; brain dura sarcoma with a MGA-NUTM1 fusion gene; sarcoma of the scalp with a CIC-NUTM1 fusion gene; paravertebral sarcoma with a CIC-NUTM1  gene; pleural sarcoma with the MGA-NUTM1 fusion gene; epidural sarcoma with CIC-NUTM1 gene; brain lateral ventricle sarcoma with the CIC-NUTM1 fusion gene; brain parietal cortex sarcoma with a BRD4-NUTM1 fusion gene; and ovary with a MXD4-NUTM1 fusion gene.
In general, these NUTM1 fusion gene-associated sarcomas have very poor prognoses and require further study to determine of role of these fusion genes in the development and progression of their corresponding sarcomas.