Table 1.
Summary of the Immunohistochemical Staining for MN/CA IX in the Normal Colorectal Mucosa, Colorectal Tumors, and Metastases of Colorectal Carcinomas
| n | Mean MN/CA IX SF (median, range) | Mean MN/CA IX DE (median, range) | Mean MN/CA IX SF/DE | |
|---|---|---|---|---|
| Normal epithelium | 16 | 0 (0, 0–0) | 0.3 (0, 0–1) | 0 |
| Hyperplastic polyps | 8 | 0.1 (0, 0–1) | 1.1 (1, 0–2) | 0.1 |
| Adenomatous lesions | 39 | 1.1 (1, 0–2) | 0.5 (0, 0–2) | 2.3 |
| SD | 13 | 0.9 (1, 0–2) | 0.2 (0, 0–2) | 4.5 |
| MD | 19 | 1.3 (1, 0–2) | 0.6 (10, 0–2) | 2.2 |
| GD | 8 | 1.0 (1, 0–2) | 0.7 (1, 0–2) | 1.7 |
| Malignant lesions | 21 | 1.2 (2, 0–2) | 1.3 (2, 0–2) | 1.0 |
| Grade I | 6 | 1.7 (2, 1–2) | 1.5 (2, 1–2) | 1.0 |
| Grade II | 9 | 1.1 (2, 0–2) | 1.2 (2, 0–2) | 0.9 |
| Grade III | 6 | 0.8 (1, 0–2) | 0.8 (1, 0–2) | 1.0 |
| Metastases | 7 | 0.6 (0, 0–2) | 0.6 (0, 0–2) | 1.0 |
SF, superficial epithelial staining; DE, deep epithelial staining; SD, slight dysplasia; MD, moderate dysplasia; GD, grave dysplasia.