Tenosynovial Giant Cell Tumor of the Temporomandibular Joint - Case Report -

측두하악관절에서 발생한 건활막 거대세포종 - 증례보고 -

A rare case of tenosynovial giant cell tumor of invading left temporomandibular joint(TMJ) extending the middle cranial fossa is reported. Report of this entity in the temporomandibular joint is rare. A 39-year old male patient presented with mild discomfort and swelling in preauricular area. MR image demonstrated a destructive lesion of the left TMJ, with bony erosion of temporal bone and extension into middle cranial fossa. The patient underwent radiotherapy as adjuvant therapy to prevent recurrence, followed by resection. The histological and radiological features of this tumor are discussed along with a brief description of the disease entity.