MR imaging of lipoma arborescens of the knee joint.
OBJECTIVE
The purpose of this study was to define MR imaging of patients with lipoma arborescens of the knee.


CONCLUSIONS
MR images showed villous lipomatous proliferation (100%) with signal intensity similar to that of fat on T1- and T2-weighted images, masslike subsynovial fat deposition (38%), joint effusion (100%), erosive bone changes at articular margins (38%), associated synovial cysts (25%), and degenerative changes (13%). MR imaging is a valuable technique for examining patients with lipoma arborescens of the knee and can support the diagnosis of this rare condition.
Department of Osteoradiology, University of Califormia, San Diego 92161, USA.
K N
KN
Ryu
S
S
Jaovisidha
M
M
Schweitzer
A O
AO
Motta
D
D
Resnick
D000273:Adipose Tissue / Q000473:pathology; D000293:Adolescent; D000328:Adult; D002648:Child; D005122:Exudates and Transudates; D005260:Female; D006801:Humans; D007592:Joint Diseases / Q000175:diagnosis*; D007719:Knee Joint / Q000473:pathology*; D008067:Lipoma / Q000175:diagnosis*; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis / Q000175:diagnosis; D012189:Retrospective Studies; D016037:Single-Blind Method; D013581:Synovial Cyst / Q000175:diagnosis; D013583:Synovial Membrane / Q000473:pathology