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Histopathological characteristics of colorectal cancer samples at diagnosis
| Characteristics | Colorectal cancer patients (n) |
| Tumor location | |
| Rectum | 2 |
| Left colon | 5 |
| Right colon | 2 |
| Tumor size | |
| ≤ 4 cm | 5 |
| > 4 cm | 4 |
| Differentiation | |
| Well | 1 |
| Moderate | 7 |
| Poor | 1 |
| TNM stage | |
| I | 0 |
| II | 1 |
| III | 3 |
| IV | 3 |
TNM: Classification of Malignant Tumors, T describes the size of the tumor and whether it has invaded nearby tissue, N describes regional lymph nodes that are involved, M describes distant metastasis.
