title: Agressive osteoblastoma in a seven-year-old girl's mandible: Treatment and six-year monitoring.
abstract: BACKGROUND
  Osteoblastoma is a rare benign bone tumor with locally aggressive behavior in some cases; however, with rare malignant transformations. A case of osteoblastoma in a seven-year-old patient's mandible is presented.
  
  
  METHODS
  After the diagnosis, the patient underwent two stages of treatment. In the first intervention, an intralesional curettage was performed as well as a marsupialization of the lesion, in order to reduce its volume and allow a second and more conservative surgical period. In the second surgery, after reducing the lesion, enucleation and rigid internal fixation of the mandible were performed.
  
  
  CONCLUSIONS
  The treatment has proven to be satisfactory, without recurrence of the injury for two years, when the patient suffered a car accident that caused the synthetic material to fracture.
  
  
  CONCLUSIONS
  The internal fixation was surgically replaced and the patient is being monitored after six years of the initial intervention, without presenting further changes.
authors: Mato Grosso Cancer Hospital, Av. Historiador Rubens de Mendonça, 5500, CEP: 78.055-500, Cuiabá, MT, Brazil. Electronic address: castro.ph@uol.com.br.
authors: Paulo Henrique Souza
authors: PHS
authors: Castro
authors: Mato Grosso Cancer Hospital, Av. Historiador Rubens de Mendonça, 5500, CEP: 78.055-500, Cuiabá, MT, Brazil. Electronic address: dani_molinari@hotmail.com.
authors: Danielle Lima
authors: DL
authors: Molinari
authors: Mato Grosso Cancer Hospital, Av. Historiador Rubens de Mendonça, 5500, CEP: 78.055-500, Cuiabá, MT, Brazil. Electronic address: hiramstateri@hotmail.com.
authors: Hiran Queiroz
authors: HQ
authors: Stateri
authors: University of Cuiabá, Av. Manoel José de Arruda, 3.100, CEP: 78065-900, Cuiabá, MT, Brazil. Electronic address: alvarohborges@gmail.com.
authors: Alvaro Henrique
authors: AH
authors: Borges
authors: Mato Grosso Cancer Hospital, Av. Historiador Rubens de Mendonça, 5500, CEP: 78.055-500, Cuiabá, MT, Brazil; University of Cuiabá, Av. Manoel José de Arruda, 3.100, CEP: 78065-900, Cuiabá, MT, Brazil. Electronic address: odontologiavolpato@uol.com.br.
authors: Luiz Evaristo Ricci
authors: LER
authors: Volpato
keywords: Conservative treatment; Mandible; Osteoblastoma