술후성상악낭종에 관한 임상병리학적 연구

A Clinicopathological study on postoperative maxillary cyst

The purpose of this report is to describe the clinical, radiographic, and histopathological findings of 41 cases of postoperative maxillary cyst(P.O.M.C.). The surgical ciliated cyst of the maxillary sinus originally reported by Gregory and Shafer in 1958 is a cyst which develops after surgical entry into the maxillary sinus, especially Caldwell-Luc operation. Besides the etiology of the P.O.M.C., its clinical course and treatment is not particular, but each cyst has various epithelial lining which reveals etiology in relation to its origin. We reviewed 41 patients diagnosed as P.O.M.C. at Dept. of Oral and maxillofacial Surgery, Seoul National University Hospital during the period from Jan. 1981 to Mar. 1989, and following results were obtained. 1. The incidence of P.O.M.C. was the highest between the age of 30 and 49 and affected 32 men and 9 women, suggesting the possibility of high incidence in men. 2. The most frequent time period between the radical operation on the maxillary sinus and the visit to hospital were from 10 to 19 year (34.1%) and 20 to 29 year (34.1%). 3. There is no significant difference in the number of each sinus involvement. The number of right sinus involvement was 22 cases(53.7%). 4. The most frequent chief complaint was the facial swelling and tenderness on the buccal cheek area. 5. Radiography showed unilocular(67.9%) and multilocular radiolucency(32.1%). 6. Histopathologically, the lining epithelium of cysts were ciliated columnar epithelium (78.0%), squamous epithelium(31.7%), cuboidal epithelium(4.9%) and columnar epithelium (4.9%). The main epithelium was ciliated columnar epithelium. 7. The surgical treatment method were Caldwll-Luc operation(28cases, 68.3%), modified Caldwell-Luc operation(8 cases, 19.5%), and cyst enucleation and primary closure 4 cases, 9.6%).