title: Intra-articular nodular fasciitis of the knee: a rare cause of recurrent hemarthrosis.
abstract: A 20-year-old man presented with pain and recurrent hemarthrosis in the right knee. Magnetic resonance imaging of the knee showed a lesion with homogeneous low signal intensity on T1-weighted images and a heterogeneous, low to high signal intensity on T2-weighted images. At arthroscopy, the mass was located between the posterior cruciate ligament and the posterior knee joint capsule. The tumor was excised through a posterior approach and histologically diagnosed as a nodular fasciitis. Intra-articular nodular fasciitis is a very rare clinicopathologic entity. The current case showed the unique clinical feature of recurrent hemarthrosis at initial presentation, which has not been previously reported.
authors: Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan.
authors: Tokio
authors: T
authors: Matsuzaki
authors: Toshihiro
authors: T
authors: Akisue
authors: Kenta
authors: K
authors: Kishimoto
authors: Shin-ichiro
authors: S
authors: Kishimoto
authors: Masaya
authors: M
authors: Imabori
authors: Hitomi
authors: H
authors: Hara
authors: Yoshiyuki
authors: Y
authors: Okada
authors: Toshiaki
authors: T
authors: Hitora
authors: Ryosuke
authors: R
authors: Kuroda
authors: Masahiro
authors: M
authors: Kurosaka
authors: Tetsuji
authors: T
authors: Yamamoto
mesh_terms: D001182:Arthroscopy; D001696:Biomechanical Phenomena; D001706:Biopsy; D005208:Fasciitis / Q000150:complications* / Q000473:pathology / Q000503:physiopathology / Q000601:surgery; D006395:Hemarthrosis / Q000209:etiology*; D006801:Humans; D007592:Joint Diseases / Q000150:complications* / Q000473:pathology / Q000503:physiopathology / Q000601:surgery; D007719:Knee Joint / Q000473:pathology* / Q000503:physiopathology / Q000601:surgery; D008279:Magnetic Resonance Imaging; D008297:Male; D011237:Predictive Value of Tests; D016059:Range of Motion, Articular; D020127:Recovery of Function; D012008:Recurrence; D016896:Treatment Outcome; D055815:Young Adult