Nasal cavity/paranasal sinuses: a collection of random onco-facts

~4500 cases per year
Maxillary sinus is the most common site
Risk factors: smoking, wood dust, nickel (nasal cavity); thorotrast (maxillary sinus)
Nodal drainage
-Nasal cavity: To retropharynx, intercalated nodes ("moustache" nodes), level I
-Esthesioneuroblastoma: similar
-Maxillary sinus: nodal involvement is rare
-Ohngren's line: imaginary line extending from medial canthus to the angle of mandible; tumors above this line are in the "superstructure" and more likely to involve orbit/ethmoid sinus/base of skull and be unresectable