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[Popliteal aneurysm simulating a Baker's cyst in a patient with rheumatoid arthritis: a case presentation]
Concepción Chalmeta Verdejo1, Juan José Alegre Sancho, José Andrés Román Ivorra
1Servicio de Reumatología. Hospital Universitario Dr. Peset, Valencia, España. inchave@yahoo.es
Abstract:
Baker's cyst is the most common mass located in the back side of the knee, the popliteal fossa, in patients with degenerative and inflamatory disease of the knee. Popliteal mass may also be due to proliferation of adipose tissue, popliteal artery aneurysm, thrombotic vein, or tumor. These lesions are rarer and may easily be misinterpreted as cysts. We show a man with rheumatoid arthritis who is presenting a palpable mass in the popliteal fossa. Ultrasonography examination demostrated a popliteal artery aneurysms.
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