Computed tomography and scintigraphy exams for diagnosis and treatment planning of the condylar osteochondroma: A case report

  • Fernanda Paula Yamamoto University of São Paulo
  • Brunno Santos de Freitas Silva University of São Paulo
  • Ricardo Wagner Modes Dental Service of the Santo André Municipal Hospital Center
  • Felipe Paiva Fonseca Piracicaba Dental School, State University of Campinas
  • Flávia Sirotheau Corrêa Pontes Federal University of Pará
  • Suzana Catanhede Orsini Machado Souza University of São Paulo
Keywords: Osteochondroma, diagnosis, computed tomography, bone tumors

Abstract

Purpose: To report an uncommon case of osteochondroma affecting the mandibular condyle of a young patient and to illustrate the important contributions of different imaging resources to the diagnosis and treatment planning of this lesion. Case description: A 24-year-old female patient with the chief complaint of an increasing facial asymmetry and pain in the left pre-auricular region, revealing a reduced mouth opening, mandibular deviation and posterior cross-bite over a period of 18 months. Panoramic radiography revealed an enlargement of the left condyle, whereas computed tomography (CT) sections and three-dimensional CT showed a well-defined bone growth arising from condylar neck. The scintigraphy exam showed an abnormal osteogenic activity in the left temporomandibular joint. The condyle was surgically removed and after 18 months follow-up the panoramic radiography and CT scans showed no signs of recurrence. Conclusion: Although osteochondroma is a benign bone tumor that rarely arises in cranial and maxillofacial region, it should be considered in the differential diagnosis of slow-growing masses of the temporomandibular area and the use of different imaging exams significantly contribute to the correct diagnosis and treatment planning of this pathological condition.

Author Biographies

Fernanda Paula Yamamoto, University of São Paulo
Oral Pathology Doctoral Program, University of São Paulo, São Paulo, SP. Brazil
Brunno Santos de Freitas Silva, University of São Paulo
Oral Pathology Doctoral Program, University of São Paulo, São Paulo, SP. Brazil
Ricardo Wagner Modes, Dental Service of the Santo André Municipal Hospital Center
Dental Service of the Santo André Municipal Hospital Center, Santo André, SP, Brazil
Felipe Paiva Fonseca, Piracicaba Dental School, State University of Campinas
Stomatopathology Masters Program, State University of Campinas, Piracicaba, SP, Brazil
Flávia Sirotheau Corrêa Pontes, Federal University of Pará
Discipline of Oral Pathology, Dental School, Federal University of Pará, Belém, PA, Brazil
Suzana Catanhede Orsini Machado Souza, University of São Paulo
Discipline of Oral Pathology, Dental School, University of São Paulo, São Paulo, SP. Brazil
Published
2010-09-29
Section
Case Report