pathology
Last reviewed 01/2018
Histology:
- 80% are squamous cell carcinoma
- 10% are adenocarcinoma
- 1% are melanoma
- others include:
- transitional cell carcinoma
- olfactory neuroblastoma
Sites:
- 99% in maxillary and ethmoid sinuses
- 1% in frontal and sphenoid sinuses