Patients treated by an endonasal approach alone or combined with maxillary anterior sinusotomy for odontogenic cysts or tumors.

Table 1: Patients treated by an endonasal approach alone or combined with maxillary anterior sinusotomy for odontogenic cysts or tumors.

Age/sex	Symptom/sign	CT: maxillary sinus	Endonasal surgery	Anterior maxillary antrostomy	Histology	Complications	Complete resection/follow-up
Male/45	Facial swelling	Destruction of all walls	Medial and lower maxillary mega-antrostomy	Yes	Unicystic ameloblastoma	No	Yes/6 years
Male/15	Facial swelling	Anterior, medial, and posterior wall destruction	Medial maxillary mega-antrostomy	Yes	Keratocyst	No	Yes/7 years
Male/12	Headache	Posterior and inferior wall destruction	Medial maxillary mega-antrostomy and prelacrimal approach	No	Dentigerous cyst	No	Yes/6 months