ENT Nasal Polyposis f0fc5bd1 All of the following are true about antrochoanal polyp except: A Single B Unilateral C Premalignant D Arises from maxillary antrum High-Yield Explanation (c) Premalignant(Ref. Scott Brown, 6th ed., 4/10/14)Nasal polyps arise due to edema of the nasal mucosa. They are not premalignant.