All of the following are true about antrochonal polyp,except -
Antrochoanal polyp is non-cancerous growth arising from the mucous membrane of the maxillary sinus and reaches the opening of the sinus in the nasal cavity.
It is single and unilateral, i.e. it occurs in one of the maxillary sinus.
Single
Unilateral
Premalignant
Arises from medullary antrum