NCIt synonyms : BSNS; Low-Grade Sinonasal Sarcoma with Neural and Myogenic Differentiation; Low Grade Sinonasal Sarcoma with Neural and Myogenic Differentiation; Sinonasal Biphenotypic Sarcoma;
NCIt definition : A rare, slow-growing, low-grade soft tissue sarcoma arising from the sinonasal tract.
It presents with non-specific obstructive nasal symptoms. Morphologically, it is an
infiltrative, cellular spindle cell neoplasm. It is associated with rearrangement
of the PAX3 gene.;