Chondroid Tenosynovial Giant Cell Tumor A Rare Case Involving the Infratemporal Fossa

• Published in: Oman medical journal Vol. 36; no. 1; pp. 1 - 5
• Main Authors: Bakathir , Abdulaziz, Al Shibani , Salma, Albakri , Abdullah, Al-Saadi , Noor, Al-Kalbani , Faisal, Al Kindi , Hunaina, Al-Hashmi , Ahmed
• Format: Journal Article
• Language: English
• Published: Muscat - Oman Oman Medical Specialty Board 2021; OMJ
• Subjects: Case Report; Decision making; DIAGNOSIS; giant cell tumor of tendon sheath; Histology, Pathological; JOINTS; NEOPLASMS; oman; PATIENTS; Point-of-care testing; soft tissue neoplasms; temporomandibular joint; TENOSYNOVITIS; Tumors; إلتهاب غمد الوتر; الأورام; التشخيص; المرضى; الوصلات; Soft Tissue Neoplasms; Oman; Giant Cell Tumor of Tendon Sheath; Temporomandibular Joint
• ISSN: 1999-768X; 2070-5204
• DOI: 10.5001/omj.2021.11

Tenosynovial giant cell tumor (TGCT) is a benign soft-tissue neoplasm that rarely occurs in the craniofacial region. We report a case of a 27-year-old male who presented to our unit in September 2017 with severe temporomandibular joint (TMJ) pain and progressive limitation opening his mouth. Based on clinical and imaging examinations, a well-defined soft tissue lesion was identified within the right infratemporal fossa, causing pressure on the TMJ and the surrounding structures. The lesion was surgically excised through trans-mandibular and endoscopic approaches. Histopathology diagnosis revealed a rare chondroid subset of TGCT. At 18 months follow-up, the patient showed resolution of the jaw pain, good functional and esthetic outcomes, and no evidence of recurrence.