Extraosseous Gorlin Cyst: Case Report
Jessica Barbosa de Oliveira Gonçalves
Medical School, University of Marilia (UNIMAR), Marilia, São Paulo, Brazil.
Ellen Cristina Gaetti Jardim
Federal University of Mato Grosso do Sul, Center of the University Hospital, Campo Grande, Mato Grosso do Sul, Brazil.
Bruna Trazzi Pagani
Dentistry School, University of Marilia (UNIMAR), Marilia, São Paulo, Brazil.
Rogerio Leone Buchaim *
Department of Biological Sciences (Anatomy), Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil.
Beatriz Flavia de Moraes Trazzi
Dentistry School, University of Marilia (UNIMAR), Marilia, São Paulo, Brazil.
Marcelo Morgueti
Dentistry School, University of Marilia (UNIMAR), Marilia, São Paulo, Brazil.
Daniela Vieira Buchaim
Medical School, University of Marilia (UNIMAR), Marilia, São Paulo, Brazil.
Marcelo Rodrigues
Medical School, University of Marilia (UNIMAR), Marilia, São Paulo, Brazil and Dentistry School, University of Marilia (UNIMAR), Marilia, São Paulo, Brazil.
*Author to whom correspondence should be addressed.
Abstract
The Calcifying Cystic Odontogenic Tumor (CCOT) was first described by Gorlin in 1962. Due to its clinical, radiographic, and histopathological variables, it presents a wide variety of terminologies. The present report presents an extraosseous lesion (unrelated to teeth) with totally atypical behavior and a large bone resorption area. Clinical examination revealed a slight bulging in the lower right region of the jaw, presenting pain on palpation and soft consistency, as well as liquid contents inside it. A panoramic radiograph evidenced the presence of large local bone resorption. After collection of the material for histopathological analysis, the diagnosis was calcifying odontogenic cystic tumor. The lesion is also known as oral tumor of Malherbe, atypical ameloblastoma, keratinizing ameloblastoma, ghost cells odontogenic carcinoma, and Gorlin’s cyst. Such diagnosis in the literature is important, as there is a wide variety of manifestations of these lesions, complicating the clinical diagnosis and the terminological standardization of the disease.
Keywords: Calcifying odontogenic cyst, ghost cells odontogenic carcinoma, oral tumor of Malherbe, atypical ameloblastoma, keratinizing ameloblastoma.