such as that caused by deep vein thrombosis. Arthrography and venography using imaging dyes allow for the detection of popliteal cysts and the exclusion of thrombotic lesions but are invasive procedures. Magnetic resonance imaging and computerised axial tomography scans allow for the detection of a ruptured or dissected popliteal cyst and, if in the same plane as the scan, the detection of a deep vein thrombosis. Treatment Once diagnosed, and after deep vein thrombosis other disease masquerades have been excluded, the treatment for pseudothrombophlebitis is supportive. This includes the use of anti-inflammatory medications such as NSAIDs. References Vascular diseases