[Microcystic lateral parodontal cyst. Report of a case]

The lateral periodontal cyst (LPC) is an odontogenetic lesion of the maxillary bone representing about 0.8% of maxillary cystic lesions. It starts in the lateral periodontal area of a vital erupted tooth. Clinical symptoms are generally absent. Its diagnosis usually can be made on the basis of an occasional radiographic examination which shows an osteolytic monoloculate lesion with defined outlines. The botryoid cyst is a variation of LPC and is radiographically different and more aggressive than the common LPC. A clinical case of LPC which allows to make histopathological and clinical considerations on these cystic lesions is described.