A Case of Postoperative Maxillary Cyst Fenestrated Using the Endoscopic Modified Medial Maxillectomy Approach

Postoperative maxillary cysts are lesions that occur after Caldwell-Luc surgery. For the cysts that are widely in wide contact with the lateral wall of the nasal cavity, fenestration can be performed using a standard endoscopic sinus surgery procedure. It has been reported that it is important to cover the fenestrated bone wall with a mucosal flap to prevent reclosure of the cyst wall. In recent years, there have been reports of application of the endoscopic modified medial maxillectomy (EMMM) approach for various maxillary sinus lesions.