Abstract
Dentigerous cysts are classified as odontogenic developmental cysts among odontogenic and maxillofacial bone tumors according to the WHO classification.
Here we report our experience of a case of a dentigerous cyst removed by the endoscopic modified medial maxillectomy （EMMM） technique. A 21-year-old female presented with left nasal obstruction and swelling of her left cheek. CT examination revealed a cystic lesion containing a tooth-like structure in her left maxillary sinus. The cyst was removed by the EMMM technique with a good view of the surgical field. The patient had no postoperative complications. The nasal cavity structure was well maintained, and no recurrence was experienced for four years after the surgery. Because the nasal endoscopy technique is familiar to otolaryngologists, they should participate in the treatment of maxillary dentigerous cysts.
