Table 2 Extracolonic site distribution of multiple primary malignancies in patients with colorectal cancer
Organ | Total | Percentage | Number of synchronous patients with multiple primary malignancies | Number of metachronous patients with multiple primary malignancies |
|---|---|---|---|---|
Stomach | 52 | 39.4 | 26 | 26 |
Lung | 17 | 12.9 | 7 | 10 |
Breast | 10 | 7.58 | 0 | 10 |
Kidney | 8 | 6.06 | 2 | 6 |
Esophagus | 7 | 5.3 | 5 | 2 |
Prostate | 7 | 5.3 | 2 | 5 |
Bladder | 5 | 3.79 | 1 | 4 |
Thyroid | 4 | 3.03 | 0 | 4 |
Hematologic | 4 | 3.03 | 1 | 3 |
Uterus | 3 | 2.27 | 1 | 2 |
Liver | 2 | 1.52 | 1 | 1 |
Bile duct | 2 | 1.52 | 1 | 1 |
Ovary | 2 | 1.52 | 0 | 2 |
Tongue | 1 | 0.76 | 0 | 1 |
Laryngeal | 1 | 0.76 | 1 | 0 |
Anal fistula | 1 | 0.76 | 1 | 0 |
Penis | 1 | 0.76 | 0 | 1 |
Skin | 1 | 0.76 | 0 | 1 |
Total | 128 | 100 | 49 | 79 |