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Article
September 1968

Cystic Lesions of the Maxilla: I. Classification and Clinical Features

Arch Otolaryngol. 1968;88(3):315-325. doi:10.1001/archotol.1968.00770010317022
Abstract

CYSTIC lesions of the maxilla are more difficult to diagnose than those lesions in bones of more simple construction. Factors contributing to this difficulty are: (1) There are normal pneumatic cavities of varying size in each maxilla. (2) The paired construction of the maxillary bones creates an air-containing nasal cavity between them: numerous adjacent pneumatic cavities created in part by the boundaries of each maxillary bone. (3) There are multiple epithelial rests embedded in the maxillary bones. (4) There are multiple areas of developmental fusion in facial development. (5) The close approximation of two embryologically and histologically distinct types of epithelial surfaces are each capable of producing cystic lesions. (6) There are numerous ectodermal derivatives such as teeth and mucous secreting glands. (7) The slow steady development of cystic lesions along the line of least resistance allows encroachment upon adjacent air-containing structures prior to development of symptoms. (8) There are

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