Relationship between the appendix and ulcerative colitis: A new discovery

Figure 3 Histopathological diagnosis of ulcerative colitis across multiple colonic sites. A: Appendix; B: Ileocecal region; C: Sigmoid colon; D: Rectum. The pathological findings of appendiceal, ileocecal, sigmoid, and rectal mucosal biopsies were consistent with ulcerative changes: Uneven distribution of crypts, crypt distortion, visible cryptitis, focal crypt loss, massive plasma cell and lymphocyte infiltration in the stroma, and focal neutrophil infiltration.