Lateral periodontal cyst simulating a residual cyst

Abstract

Introduction Lateral periodontal cysts (LPC) are not frequent and the diagnosis is generally established by means of a routine radiological exploration. The aim of this article is to report a case of LPC on edentulous area.

Case outline A 59-year-old man was referred with an extensive radiolucent cystic lesion on edentulous area of anterior maxilla, with a clinical and radiographic diagnosis of residual cyst. The histopathologic features exhibited a diagnosis of LPC.

Conclusion This is the third case of LPC reported in the literature, which describes a different clinical and radiographic aspect than proposed in the literature.

Keywords: lateral periodontal cyst; residual cyst; edentulous area