術後性上顎嚢胞の臨床病理学的考察 本症の成因と手術法について

Abstract

A clinicopathological study in 229 patients with postoperative maxillary cysts (POMC)(unilateral: 215 cases. bilateral: 14 cases) is described.The patients were treated at our hospital between 1979 and 1989. The age of the patients ranged from 18 to 72 years, and their average age was 45.2 years. The chief complaints of these patients were swelling and pain, and POMC were diagnosed based on clinical, radiologic and histopathologic findings.The patients were surgically treated by the following procedures: 1) extirpation of cysts (35 cases), 2) marsupialization to the inferior meatus (120 cases), and 3) radical operation according to the Caldwell-Lucs, method (88 cases).Histopathologic examination revealed various patterns of the cyst wall, including ciliated, cuboidal, squamous, and columnar epithelium, as well as a mixture of two or three kinds of these epithelial cells.Radiological examination using contrast media revealed that the from of cysts was either ovoid or irregular.One of the 243 cases showed recurrence. In this case, there was no passage between the cystic and nasal cavity. These findings suggest that sufficient marsupialization to the nasal cavity is important to ensure a favorable outcome.