Temporomandibular joint chondrosarcoma: a case report and literature review.
10.5125/jkaoms.2016.42.5.288
- Author:
Kyungjin LEE
1
;
Seong Hwan KIM
;
Soung Min KIM
;
Hoon MYOUNG
Author Information
1. Department of Oral and Maxillofacial Surgery, School of Dentistry, Seoul National University, Seoul, Korea. myoungh@snu.ac.kr
- Publication Type:Case Report
- Keywords:
Osteosarcoma;
Temporomandibular joint
- MeSH:
Bone Resorption;
Cartilage;
Chondrocytes;
Chondrosarcoma*;
Diagnosis;
Facial Nerve;
Female;
Follow-Up Studies;
Free Tissue Flaps;
Head;
Humans;
Middle Aged;
Neck;
Osteosarcoma;
Recurrence;
Temporomandibular Joint*;
Transplants;
Trismus
- From:Journal of the Korean Association of Oral and Maxillofacial Surgeons
2016;42(5):288-294
- CountryRepublic of Korea
- Language:English
-
Abstract:
Chondrosarcoma is a malignant tumor that originates from cartilaginous cells and is characterized by cartilage formation. Only 5% to 10% of chondrosarcoma occurs in the head and neck area, and it is uncommon in the temporomandibular joint area. This report describes an unusual case with a rare, large chondrosarcoma in a 47-year-old woman who presented with painless swelling and trismus. Computed tomography showed a large mass approximately 8.5×6.0 cm in size arising adjacent to the lateral pterygoid plate and condyle. There were features suggestive of bone resorption. The tumor was resected in a single block with perilesional tissues, and a great auricular nerve graft was performed because of facial nerve sacrifice. Microscopic examination of sections stained with H&E revealed chondrocytes with irregular nuclei and heterogeneous hyper chromatic tumor cells embedded in the chondrocyte lacuna. The diagnosis was a grade I chondrosarcoma. There was no evidence of recurrence at the 8-month follow-up, and a reconstruction surgery with fibular osteocutaneous free flap was performed. We report this unusual entity and a review of the literature.
