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2005 WHO Classification of Sinonasal Tumor
• Squamous cell carcinoma (SCC)
• Lymphoepithelial carcinoma
• Adenocarcinoma
ITAC, non ITAC (tubulopapillary LG)
• Salivary gland type carcinomas
• Neuroendocrine tumours
carcinoid, small cell neuroendocrine type
• Sinonasal undifferentiated carcinoma (SNUC)
(HPV 10% - El-Mofty Am J Surg Pathol 2005)
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