Pigmented villonodular synovitis of the temporomandibular joint ? computed tomography and magnetic resonance findings
김일규, 조현영, 조현우, 서지훈, 이동환, Peng Wang,
소속 상세정보
김일규 ( Kim Il-Kyu ) - Inha University College of Medicine Department of Oral and Maxillofacial Surgery
조현영 ( Cho Hyun-Young ) - Inha University College of Medicine Department of Oral and Maxillofacial Surgery
조현우 ( Cho Hyun-Woo ) - Inha University College of Medicine Department of Oral and Maxillofacial Surgery
서지훈 ( Seo Ji-Hoon ) - Inha University College of Medicine Department of Oral and Maxillofacial Surgery
이동환 ( Lee Dong-Hwan ) - Inha University College of Medicine Department of Oral and Maxillofacial Surgery
( Peng Wang ) - Inha University College of Medicine Department of Oral and Maxillofacial Surgery
KMID : 0355620140400030140
Abstract
Pigmented villonodular synovitis (PVNS) is a benign but locally aggressive and destructive disease originating in the synovial membranes. It is a proliferative disorder of unknown etiology. Involvement of the temporomandibular joint (TMJ) is very rare. Computed tomography clearly reveals areas of lytic bone erosion and sclerosis, and also clearly defines the extent of the tumor which is the focal areas of hyperdensity within the soft-tissue mass. Magnetic resonance images invariably show profound hypointensity on both T1- and T2-weighted sequences due to hemosiderin pigmentation. Additionally, high signal intensity on T2-weighted images may indicate cystic loculation of the joint fluid. This case study describes a rare case of PVNS of the TMJ with bone destruction of the mandibular condyle. Complete surgical excision of the lesion was performed through a preauricular approach with temporal extension. During the 10-year follow-up, two more operations were performed due to local recurrence and the fracture of the reconstruction plate. Total joint reconstruction with Biomet was finally performed, and the absence of disease was confirmed with a biopsy report showing fibrosis with hyalinization and mild inflammation of the excised soft tissue from the old lesion.
키워드
Temporomandibular joint;Pigmented villonodular synovitis;Mandibular reconstruction
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