The tumor often affects multiple sites within the upper aerodigestive tract, frequently showing extension into the orbit (25%) or through the cribriform plate (11%) of the ethmoid sinus into the skull base. The patient presents with nonspecific findings, including difficulty breathing, facial pressure, congestion, pain, and mild epiphora. Often, concurrent benign<unk>  tract inflammatory polyps are seen.
Biphenotypic sinonasal sarcoma
Sinonasal undifferentiated carcinoma
Nesidioblastoma
Nasopharyngeal angiofibroma
Lymphoepithelioma
Medulloepithelioma
Nasal glioma
Reticulohistiocytoma