Antiphospholipid syndrome is a thrombotic disorder characterized by arterial or venous thrombosis with the presence of antiphospholipid antibodies (aPA). We reported a 38- year-old man suffering deep vein thrombosis associated with antiphospholipid antibody syndrome. He underwent an interventional procedure of intravascular thrombolytic therapy and stent insertion due to deep vein thrombosis in the lower extremities. On the next day of the procedure, he complained of low back pain, motor weakness in lower extremities, sensory loss and voiding difficulty. Lumbar MRI revealed epidural hematoma between T12 and L2 spine, resulting in cauda equina syndrome. Twenty days later, pulmonary thromboembolism was newly diagnosed. In laboratory test, aPA was detected. Therefore, he was finally diagnosed as antiphospholipid syndrome. We reported this unusual case with the review of literatures. (J Korean Acad Rehab Med 2005; 29: 231-234)
