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Rate of high carbonic anhydrase IX (CA9) expression in each histologic group
| Histologic type | Total (n) | High expression | Low expression |
|---|---|---|---|
| N (%) | N (%) | ||
| Adenocarcinoma | 112 | 101 (90 %) | 11 (10 %) |
| High-grade dysplasia | 17 | 16 (94 %) | 1 (6 %) |
| Low-grade dysplasia | 20 | 17 (85 %) | 3 (15 %) |
| Barrett esophagus | 27 | 20 (74 %) | 7 (26 %) |
| Columnar cell metaplasia | 58 | 48 (83 %) | 10 (17 %) |
| Squamous cell carcinoma | 23 | 2 (9 %) | 21 (91 %) |
| Squamous epithelium | 62 | 0 (0 %) | 62 (100 %) |
