Peripheral Calcifying Odontogenic Cyst: a rare case report

• Liana-Cristina-Melo-Carneiro Costa ^[1] ; Joaquim-Barbosa-Matias Neto ^[1] ; Eliene-Magda de-Assis ^[1] ; Hayder-Egg Gomes ^[1] ; Tiago-Johnston Leitão ^[2] ; Renzo-Rafael-Cevallos Vasconcelos ^[3] ; Paulo-Eduardo-Alencar Souza ^[4] ; Martinho-Campolina-Rebello Horta ^[4]
  1. [1] Pontifícia Universidade Católica de Minas Gerais

     Pontifícia Universidade Católica de Minas Gerais

     Brasil

     
  2. [2] Universidade Federal de São João del-Rei

     Universidade Federal de São João del-Rei

     Brasil

     
  3. [3] Private orthodontics practice, Divinópolis, MG, Brasil
  4. [4] Graduate Program in Dentistry, School of Dentistry, Pontifical Catholic University of Minas Gerais (PUC Minas), Belo Horizonte, MG, Brazil; Oral Pathology Section, School of Dentistry, Pontifical Catholic University of Minas Gerais (PUC Minas), Belo Horizonte, MG, Brazil

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• Localización: Journal of Clinical and Experimental Dentistry, ISSN-e 1989-5488, Vol. 10, Nº. 11 (November), 2018, págs. 1140-1144
• Idioma: inglés
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• Resumen

  • The Calcifying Odontogenic Cyst (COC) is a simple cyst lined by ameloblastoma-like epithelium with ghost cells. The peripheral COC is a rare lesion and few reports have been published considering its clinical and histopathological features. This article aimed to report on a case of a peripheral COC, discussing its clinical, imaginological and histopathological features. A 9-year-old male patient presented a 10x5 mm painless nodule in the palatal mucosa of the left central incisor. Panoramic, occlusal and periapical radiographs did not show alterations. A computed tomography exam showed a slight soft tissue swelling located in the palatal mucosa of the left maxillary central incisor. An excisional biopsy was performed. The histopathological analysis showed a cystic lesion adhered to an oral mucosa fragment and lined by an ameloblastoma-like epithelium with ghost cells. The diagnosis of peripheral COC was established and the patient has been disease-free for 5 years. Although rare, peripheral COC is an important lesion that should be considered as a differential diagnosis of gingival hyperplastic lesions.