| On admission to the hospital, all patients underwent a detailed clinical evaluation, 12-lead ECG, screening blood tests, and chest roentgenogram. |
| After placement, a chest roentgenogram or barium esophagography is performed to reconfirm stent position. |
| A roentgenogram of the thorax revealed a large mediastinal mass, suggestive of lymph node enlargement. |
| A roentgenogram of the chest revealed dextrocardia and hyperlucent left lung fields. |
| On plain roentgenogram a radio-opaque mass extending from the iliac fossa to the lesser trochanter was seen. |
| Because the PA-chest roentgenogram disclosed a widening of the upper mediastinum, a chest computed tomographic examination was done. |
