title: Chondroblastoma of the temporomandibular joint lateral capsule: a case report.
abstract: OBJECTIVE
  Chondroblastoma is a rare, benign bone tumor that accounts for approximately 1% of all primary bone tumors. Chondroblastoma that occurs at the temporomandibular joint can exhibit symptoms similar to those associated with other temporomandibular disorders. This case study aims to present an eight-year followup of chondroblastoma occurring at the temporomandibular joint.
  
  
  METHODS
  The patient presented swelling in the left temporomandibular joint and trismus. Based oncomputed tomography and magnetic resonance imaging findings, a provisional diagnosis of synovial chondromatosis was made. Complete excision of the lesion was performed under general anesthesia.
  
  
  RESULTS
  After histopathological examination, the lesion was finally diagnosed as chondroblastoma. Currently, 8 years after the operation, the patient has not experienced any symptoms or any notable complications.
  
  
  CONCLUSIONS
  Although chondroblastoma is a benign tumor, it shows aggressive characteristics with bone invasion. Therefore, precise diagnosis and proper treatment planning is crucial for successful treatment of chondroblastoma.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Gangnam Severance Hospital, College of Dentistry, Yonsei University , Seoul, Korea.
authors.forename: Sung-Min
authors.initials: SM
authors.lastname: Kim
authors.forename: Soon Won
authors.initials: SW
authors.lastname: Hong
authors.forename: Da Jung
authors.initials: DJ
authors.lastname: Ryu
authors.forename: Jong-Ki
authors.initials: JK
authors.lastname: Huh
mesh_terms: D002804:Chondroblastoma / Q000175:diagnosis* / Q000473:pathology; D019902:Chondrocytes / Q000473:pathology; D015838:Chondromatosis, Synovial / Q000175:diagnosis; D003937:Diagnosis, Differential; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D017746:Joint Capsule / Q000473:pathology*; D008279:Magnetic Resonance Imaging / Q000379:methods; D008875:Middle Aged; D013705:Temporomandibular Joint Disorders / Q000175:diagnosis* / Q000473:pathology; D014057:Tomography, X-Ray Computed / Q000379:methods
keywords: Benign tumor; Chondroblastoma; Temporomandibular joint