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Cytokeratin Expression in Sinonasal Poorly Differentiated Squamous Cell Carcinoma (SCC), Nonkeratinizing Squamous Cell Carcinoma (NKSCC), and Sinonasal Undifferentiated Carcinoma (SNUC)
| CK4 | CK5/6 | CK7 | CK8 | CK10 | CK13 | CK14 | CK19 | |
|---|---|---|---|---|---|---|---|---|
| SCC | + (3/10) | + (9/10) | + (6/10) | + (9/10) | – | + (9/10) | + (8/10) | + (9/10) |
| NKSCC | – | + (9/10) | – | + (9/10) | – | + (8/10) | + (8/10) | + (9/10) |
| SNUC | – | – | + (3/6) | + (6/6) | – | – | – | + (3/6) |
From Franchi et al. [3]
