A case of idiopathic deep vein thrombosis improved with glucocorticoid therapy.

A healthy, middle-aged Japanese man with no family history of thrombotic disorders presented with acute abdominal pain due to ischemic colitis. Two months later, he developed left leg pain and swelling. A venogram of the lower limbs, computed tomography, and a scintigram of pulmonary blood flow revealed deep vein thrombosis of the left lower limb extending to the inferior vena cava and emboli of both pulmonary arteries with bilateral pleural effusions. The responsible coagulation disorder was not detected in this case. Since these thrombi were refractory to the thrombolytic therapy with urokinase and anticoagulant therapy with warfarin, prednisolone was chosen for the suppression of accompanying thrombophlebitis. Two months following the initiation of prednisolone (20 mg/day), the venous thrombosis, abnormal pulmonary shadows, and pleural effusions had completely resolved. This case demonstrates the successful treatment of idiopathic venous and pulmonary thrombosis with glucocorticoids.