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Clinicopathological details in patients with primary early colorectal signet ring cell carcinomas
| Mean age (range) (yr) | 57.1 (6-79) |
| Sex (male/female) | 21/5 |
| Mean size (range) (mm) | 16.0 (2-45) |
| Site of lesions | |
| Right-sided colon (cecum/ascending/transverse) | 13 (3/1/9) |
| Left-sided colon (descending/sigmoid) | 7 (3/4) |
| Rectum | 6 |
| Depth of invasion | |
| Intramucosal | 6 |
| Submucosal | 20 |
| Macroscopic features | |
| Polypoid | 10 |
| Flat | 3 |
| Depressed | 13 |
| Lymph node metastasis | |
| Positive | 2 |
| Negative/unknown | 17/7 |
