Excellent response of severe aplastic anemia to treatment of gut inflammation: A case report and review of the literature

Figure 2 Gut inflammation verified by endoscopic examination. A: Macroscopic examination of the large intestine showed that the mucous membrane was congested and swollen, the vascular lakes were absent, and there were several polyps in the sigmoid colon and rectum, confirming the presence of gut inflammation; B: Microscopic examination revealed that these polyps were enlarged lymphoid follicles which were structurally integrated, with the infiltration of a large amount of lymphocytes and plasma cells around the lymphoid follicles and underneath the mucous membrane, in accordance with inflammatory proliferation.