Table 1.
Patient characteristics
| Patient No. | Age (yr) | Gender | Primary tumor site | Initial stage | Surgical resection | Extrahepatic metastasis at initial diagnosis | Interval from liver metastasis to RT (mo) | Extrahepatic metastasis at the time of RT | Serum CEA* before RT (ng/mL) | Child-Pugh classification before RT | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Primary | Liver | ||||||||||
| 1 | 47 | F | Rectum | pT3N0M1 | Y | N | Y | 30 | Y | 1727 | B |
| 2 | 57 | M | Colon | pT3N0M1 | Y | Y | Y | 18 | Y | 1481 | C |
| 3 | 53 | F | Colon | pT4N1M1 | Y | N | Y | 18 | Y | 11858 | B |
| 4 | 42 | F | Rectum | pT3N2M1 | Y | Y | Y | 13 | Y | 5198 | B |
| 5 | 61 | F | Colon | pT4N2M1 | Y | N | N | 4 | N | 7629 | B |
| 6 | 68 | F | Colon | cT3N2M1 | N | N | Y | 6 | Y | 10† | C |
| 7 | 45 | F | Colon | pT3N2M1 | Y | N | N | 26 | Y | 2103 | B |
| 8 | 57 | F | Colon | pT3N2M1 | Y | N | Y | 11 | Y | 373 | B |
| 9 | 70 | F | Colon | pT3N0M1 | Y | N | Y | 11 | Y | 6424 | B |
| 10 | 73 | F | Rectum | cT3N2M1 | N | N | Y | 8 | Y | 4092 | B |
*Carcinoembryonic antigen (normal range, ≤ 5 ng/mL)
†Measured 3 months before RT. Levels in other patients were assessed 1 month before RT