Fibroma of tendon sheath originating from the knee joint capsule.
We present a rare case of fibroma of the tendon sheath originating from the posterior joint capsule of the knee in a 50-year-old man. Magnetic resonance (MR) imaging revealed a lesion posterior to the medial femoral condyle. The lesion showed hypointensity on all T1-weighted, T2-weighted, short tau inversion recovery (STIR), and contrast-enhanced T1-weighted images. Plain computed tomographic (CT) scans showed a lesion with isodensity to muscle. The lesion showed no enhancement on postcontrast CT scans.
Department of Orthopaedic Surgery, Kobe University School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, Japan.
Toshiaki
T
Hitora
Tetsuji
T
Yamamoto
Toshihiro
T
Akisue
Takashi
T
Marui
Keiko
K
Nagira
Risa
R
Ohta
Masahiro
M
Kurosaka
D005350:Fibroma / Q000175:diagnosis*; D006801:Humans; D017746:Joint Capsule; D007719:Knee Joint; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D013710:Tendons; D013794:Thallium Radioisotopes; D014057:Tomography, X-Ray Computed
D013794:Thallium Radioisotopes