title: Pigmented villonodular synovitis of the temporomandibular joint with intracranial extension.
abstract: Pigmented villonodular synovitis is an uncommon benign tumor-like proliferative lesion with an undetermined origin. Involvement of the temporomandibular joint is uncommon. Although pigmented villonodular synovitis is a benign lesion, it can grow with an aggressive pattern, and it extends extra-articularly in most of the reported cases, about one-third of them exhibiting intracranial involvement. The authors reported an additional case of a 47-year-old woman with intracranial extension, who had a history of joint pain and trismus. The preoperative diagnosis was made with arthroscopy. The lesion was completely excised via preauricular approach and condylotomy. The bone defect was covered by the pedicled temporalis myofascial fat flap. The patient has been symptom-free for 40 months postoperatively.
authors.affiliation: From the Department of Oral and Maxillofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Chen
authors.forename: Xie-Yi
authors.initials: XY
authors.lastname: Cai
authors.forename: Chi
authors.initials: C
authors.lastname: Yang
authors.forename: Min-Jie
authors.initials: MJ
authors.lastname: Chen
authors.forename: Ya-Ting
authors.initials: YT
authors.lastname: Qiu
authors.forename: Ziang
authors.initials: Z
authors.lastname: Zhuo
mesh_terms: D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D013586:Synovitis, Pigmented Villonodular / Q000175:diagnosis*; D013704:Temporomandibular Joint / Q000473:pathology*; D013705:Temporomandibular Joint Disorders / Q000175:diagnosis*