title: 10-year follow-up of calcifying odontogenic cyst in the periapical region of vital maxillary central incisor.
abstract: BACKGROUND
  Radiographic images may lead to misinterpretations of lesions of endodontic and nonendodontic origin. This report describes a case of a 10-year follow-up of a calcifying odontogenic cyst (COC) in the periapical region of a vital maxillary central incisor in a 9-year-old boy.
  
  
  METHODS
  The patient revealed a history of a swelling in the periapical area of tooth #9. The patient denied any dental trauma or history of pain. Clinical examination revealed no mobility, but there was discrete discomfort when horizontal pressure was applied. Pulp vitality was present in all maxillary anterior teeth. Radiographs revealed an oval radiolucent lesion in the periapical region of maxillary central incisor. The therapeutic option was enucleation of the periapical lesion and histologic examination of the specimen. Microscopic findings suggested the diagnosis of a COC.
  
  
  RESULTS
  At a follow-up visit 10 years after surgery, panoramic and periapical radiographs showed new bone formation; the patient did not have any pain, and pulp vitality was maintained in all teeth in this area.
  
  
  CONCLUSIONS
  A COC should be part of the differential diagnosis of other jaw lesions, such as apical periodontitis. The definitive diagnosis of a COC can only be made after microscopic evaluation of the specimen. The follow-up is a helpful reference because it confirms the survival of pulp tissue and no recurrence of the COC.
authors.affiliation: Department of Oral Sciences, University of Cuiabá, Cuiabá, Mato Grosso, Brazil; Hospital of Cancer, Cuiabá, Mato Grosso, Brazil. Electronic address: arturaburad@gmail.com.
authors.forename: Artur Aburad
authors.initials: AA
authors.lastname: de Carvalhosa
authors.affiliation: Department of Oral Sciences, University of Cuiabá, Mato Grosso, Brazil.
authors.forename: Cyntia Rodrigues
authors.initials: CR
authors.lastname: de Araújo Estrela
authors.affiliation: Department of Oral Sciences, University of Cuiabá, Mato Grosso, Brazil.
authors.forename: Alvaro Henrique
authors.initials: AH
authors.lastname: Borges
authors.affiliation: Department of Oral Sciences, University of Cuiabá, Mato Grosso, Brazil.
authors.forename: Orlando Aguirre
authors.initials: OA
authors.lastname: Guedes
authors.affiliation: Federal University of Goiás, Goiânia, Goiás, Brazil.
authors.forename: Carlos
authors.initials: C
authors.lastname: Estrela
mesh_terms: D002648:Child; D003937:Diagnosis, Differential; D005500:Follow-Up Studies; D006801:Humans; D007180:Incisor / Q000473:pathology; D008297:Male; D008441:Maxillary Neoplasms / Q000175:diagnosis* / Q000601:surgery; D018333:Odontogenic Cyst, Calcifying / Q000175:diagnosis* / Q000601:surgery; D010012:Osteogenesis / Q000502:physiology; D010483:Periapical Diseases / Q000175:diagnosis; D016300:Radiography, Bitewing; D011862:Radiography, Panoramic
keywords: Apical periodontitis; Gorlin cyst; calcifying odontogenic cyst; differential diagnosis; periapical lesion