Abstract
Recently, endoscopic endonasal surgery has been widely used in the treatment of chronic sinusitis, with good results reported by many investigators. Endoscopic endonasal surgery is a technique available not only for chronic sinusitis but also for post-operative maxillary cysts. In this report, the indications for and limitations of endoscopic endonasal surgery for postoperative maxillary cysts are discussed based on experience gained from treating 14 cysts in our department.
The indications for endonasal endoscopic surgery include cysts in close contact with the lateral wall of the inferior meatus, and those cysts that can be widely opened to the middle nasal meatus.
The following cases could not be treated by endonasal endoscopic surgery:
1) cysts that were localized in areas distant from the nasal cavity,
2) cysts in which the lateral wall of the inferior nasal meatus was bony and very thickened,
3) cysts that could not be sufficiently opened to the middle nasal meatus.
