Clinical Study
Colorectal Carcinoma with Extremely Low CA19-9
Table 1
Clinical characteristics of clinical CA19-9 negative cases (n = 75).
| Age | 64.0 (29–86) |
| Gender (M/F) | 65/42 | Location | | Cecum | 8 | Ascending | 19 | Transverse | 5 | Descending | 2 | Sigmoid | 31 | Rectum | 42 | TNM stage | | I | 31 | II | 32 | III | 27 | IV | 17 |
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