title: Submandibular osseous choristoma.
abstract: OBJECTIVE
  Osseous choristoma is a rare, benign lesion of the oral cavity and is usually found in the tongue. It presents as a tumour-like mass of normal bony structure with mature cells in an abnormal position. The object of this paper is to report one case of osseous choristoma.
  
  
  METHODS
  A 32-year-old male presented with a lesion in the submandibular region, which was treated by excision. After 28 months of follow-up there was no recurrence.
  
  
  CONCLUSIONS
  Upon reviewing the English literature, no previous case of an osseous choristoma located in the submandibular region has been found. Extended clinical and radiographic follow-up is necessary after surgical excision of an osseous choristoma, despite its benign nature.
authors.affiliation: Department of Oral Surgery, Medicine and Pathology, School of Dentistry, Federal University of Minas Gerais, Brazil.
authors.forename: Aline Cristina Batista Rodrigues
authors.initials: AC
authors.lastname: Johann
authors.forename: Bruna Gonçalves
authors.initials: BG
authors.lastname: Garcia
authors.forename: Thiago Ribeiro
authors.initials: TR
authors.lastname: Nacif
authors.forename: João Batista
authors.initials: JB
authors.lastname: de Freitas
authors.forename: Maria Auxiliadora Vieira
authors.initials: MA
authors.lastname: do Carmo
authors.forename: Ricardo Alves
authors.initials: RA
authors.lastname: Mesquita
mesh_terms: D000328:Adult; D001853:Bone Marrow / Q000473:pathology; D001842:Bone and Bones / Q000473:pathology*; D002828:Choristoma / Q000473:pathology*; D003937:Diagnosis, Differential; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D013364:Submandibular Gland Diseases / Q000473:pathology*