Table 1.

Summary of NAB2::STAT6-containing neoplasms with sinonasal teratocarcinosarcoma-like morphology

	Morphology	Immunohistochemistry	Molecular	Location/age/sex
Case 1	Biphasic; SFT-like stroma with primitive round cell, neuroepithelial with neurofibrillary-like matrix, and carcinoma components; rhabdomyosarcomatous differentiation in both the spindled and primitive round cell components	Positive STAT6 + in stromal components only; Pancytokeratin (+ in squamous elements only); Nuclear Beta-catenin positivity (in squamous elements only)	NAB2::STAT6 CCND1, CTNNB1, PRKCB mutations	Right nasal/30/M
Case 2	Biphasic; SFT-like stroma with neuroepithelial with neurofibrillary-like matrix and squamoid carcinoma components	Positive STAT6 + in stromal components only; CD34 (weakly + in stroma); Pancytokeratin (in epithelial elements only); Negative S100, Desmin, beta-catenin (membranous in all components), SMARCA4 (intact)	NAB2::STAT6 BRCA2, BUB1B, LTBP1, NF1 mutations	Left nasal/54/F

F female, M male, SFT solitary fibrous tumor