A 36-year-old male patient with colon carcinoma. (A) Upright posteroanterior chest radiograph showing that a right subclavian port was implanted into the chest wall and that the catheter was placed into the lower half of the vena cava just after the procedure. (B) Malposition due to dislocation of this port catheter can be observed in the right jugular vein. This developed 3 months later. The catheter was subsequently placed back into the vena cava via jugular access.