Thrombophlebitis of the inferior vena cava involving the retroperitoneum with Crohnʹs disease: MR demonstration

We present a case of thrombophlebitis of the inferior vena cava (IVC) with Crohnʹs disease after intestinal perforation and prolonged indwelling of a catheter in the IVC. Magnetic resonance imaging demonstrated abnormal thickening and enhancement of the IVC wall. In addition, IVC thrombus formation was shown. The abnormal enhancement extended from the wall in the pericaval tissue and into the retroperitoneum, and regressed as the Crohnʹs disease subsided.