Baker's cyst and venous thrombosis.
A patient with deep venous thrombophlebitis had superficial thrombophlebitis while receiving adequate anticoagulation therapy and was then found to have a large Baker's cyst. The patient responded well to intra-articular steroids. Although an uncommon situation, thrombophlebitis may coexist with "pseudothrombophlebitis." Diagnosis requires a high index of suspicion and daily assessment of response to therapy.
D006801:Humans; D007719:Knee Joint; D008297:Male; D008875:Middle Aged; D012422:Rupture, Spontaneous; D013581:Synovial Cyst / Q000150:complications*; D013924:Thrombophlebitis / Q000209:etiology*