@article{2991521,
    title = "Lateral periodontal cysts arising in periapical sites: A report of two cases",
    author = "Nikitakis, N.G. and Brooks, J.K. and Melakopoulos, I. and Younis, R.H. and Scheper, M.A. and Pitts, M.A. and Al-Mubarak, H. and Sklavounou, A.",
    journal = "JOURNAL  OF  ENDODONTICS",
    year = "2010",
    volume = "36",
    number = "10",
    pages = "1707-1711",
    issn = "0099-2399",
    doi = "10.1016/j.joen.2010.06.015",
    keywords = "aged;  article;  case report;  differential diagnosis;  female;  human;  male;  middle aged;  pathology;  periodontal disease;  radiography;  tooth periapical disease, Aged;  Diagnosis, Differential;  Female;  Humans;  Male;  Middle Aged;  Periapical Diseases;  Periodontal Cyst",
    abstract = "Introduction: The lateral periodontal cyst is an uncommon odontogenic developmental lesion and chiefly arises in the alveolar bone between the roots of a pair of erupted teeth or lateral to a tooth root. Two atypical cases of the lateral periodontal cyst occurring in periapical sites are reported. Methods: Both lesions presented as an incidental radiographic finding, appearing as an apical radiolucency with well-circumscribed sclerotic borders. One lesion, initially suspected to be of pulpal origin, persisted after endodontic therapy; the other case was first considered to be an odontogenic keratocyst. A biopsy was performed on each patient for lesional identity. Results: Histopathologic assessment of each lesion was consistent with a lateral periodontal cyst and revealed thin, nonkeratinized epithelial linings containing nodular plaques and clear cells. The cyst walls were thickened and had minimal inflammation. Conclusions: The featured cases show that the lateral periodontal cyst is not always confined to the interradicular region and can masquerade as a lesion of endodontic origin. Aberrant cases warrant long-term surveillance. Copyright © 2010 American Association of Endodontists."
}