| Disease | ulcerative colitis |
| Symptom | C0009402|colorectal carcinoma |
| Sentences | 1 |
| PubMedID- 21876717 | The increased risk of colorectal carcinoma in patients with ulcerative colitis or crohn's disease stems from colorectal inflammation caused by the patients' immune systems reacting to intestinal commensal flora. |
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