title: Rupture of Baker's cyst mimicking deep-vein thrombosis.
abstract: Synovial effusions of the knee may produce a Baker's cyst which can dissect downwards or rupture. The synovial fluid released on rupture of such a cyst in patients with rheumatoid arthritis or calcium pyrophosphate disease is highly irritating to tissues and may produce a clinical picture mimicking deep-vein thrombosis.
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D007719:Knee Joint / Q000473:pathology; D008297:Male; D008875:Middle Aged; D012422:Rupture, Spontaneous; D013581:Synovial Cyst / Q000175:diagnosis*; D013924:Thrombophlebitis / Q000175:diagnosis*