title: Fasciitis-like proliferation in the knee joint.
abstract: We describe the case of fasciitis-like proliferation in the knee joint in a 52-year-old man. The polypoid lesion developed from the synovial joint capsule around the quadriceps tendon and was impinging on the patellofemoral joint. Histologic and immunohistochemical studies revealed a myofibroblastic proliferation similar to nodular fasciitis. Until now, only 3 other cases have been reported in the English and Japanese language literature.
authors.affiliation: Department of Orthopaedic Surgery, Kurume University School of Medicine, Kurume, Japan. tsoejima@med.kurume-u.ac.jp
authors.forename: Takashi
authors.initials: T
authors.lastname: Soejima
authors.forename: Hidetaka
authors.initials: H
authors.lastname: Murakami
authors.forename: Nobuhiro
authors.initials: N
authors.lastname: Tanaka
authors.forename: Kimiaki
authors.initials: K
authors.lastname: Sato
authors.forename: Kensei
authors.initials: K
authors.lastname: Nagata
authors.forename: Yasuo
authors.initials: Y
authors.lastname: Sugita
mesh_terms: D001182:Arthroscopy; D003937:Diagnosis, Differential; D005208:Fasciitis / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D005347:Fibroblasts / Q000473:pathology; D005870:Giant Cell Tumors / Q000175:diagnosis; D006801:Humans; D017746:Joint Capsule / Q000473:pathology*; D007719:Knee Joint / Q000473:pathology* / Q000601:surgery; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D013586:Synovitis, Pigmented Villonodular / Q000175:diagnosis