This patient with a history of rheumatoid arthritis presented with a several-month history of a painful left calf. What is the diagnosis? Baker's cyst Gastrocnemius tear Meniscal cyst Lipoblastoma Septic arthritis
A ruptured baker's cyst which is a complication of RA
A Bakers cyst is usually found in the popliteal fossa. A spontaneous calf muscle tear is unlikely. A medical cyst is usually and ultrasound/ arthroscopic diagnosis. The lesion does not look septic. The most probable diagnosis is a lipoblastoma.