Antrochoanal polyps represent a particular pathology among nasosinusal polyposis. Since KILLIAN'S first report in 1906, several pathogenic mechanisms and surgical techniques have been described. Surgical removal of an antrochoanal polyp by the classic Caldwell-Luc approach has been reviewed since the beginning of the use of nasosinusal functional endoscopic surgery. We present 12 cases of antrochoanal polyps removed by this technique in our hospital, during the last three years, analyzing the results and complications of this endoscopic approach. We conclude that functional endoscopic surgery of the sinus for removal of antrochoanal polyps, is a recommendable surgical technique due to its efficiency and low morbidity.