Abstract:

A radicular cyst is an inflammatory odontogenic cyst. Radiographically it presents as a well-defined periapical radiolucency. We report a case of a 20-year-old female with a mixed radiographic image(CBCT), diagnosed as radicular cyst in the periapical area of the roots of the central and lateral upper right incisors. The teeth have undergone a well-performed endodontic treatment. Extraction of the upper right lateral incisor with enucleation of the cyst was performed. Intraoperatively macroscopically, a rounded formation is observed, occupying the anterior part of the palate, reaching to the area of the premolars. Microscopically, a cystic formation lined by non-keratinized stratified squamous epithelium covered with multilayered epithelium was found. A radicular cyst with bone sequestration was diagnosed. Although rare, radicular cysts should be considered in the differential diagnosis of mixed periapical lesions especially in cases of tooth with pulp necrosis and/or one that has undergone endodontic treatment.