Antrochoanal polyp is usually a benign solitary mass lesion originated from maxillary sinus mucosa and emerging through maxillary ostium. We report a rare case of antrochoanal polyp and migrated dental implant in the ipsilateral maxillary sinus. Clinicians should be aware that ACP may have other concomitant conditions such as migrated dental implants.
Keywords: choanal; dental implants; maxillary sinus; migration; nasal polyps.