PMC10122477_01
Colonoscopy revealed multiple hyperemia and edema of the transverse colon (A). Hematoxylin and eosin stained revealed chronic inflammation of colonic mucosa (B). No obvious abnormality was found on abdominal CT (C). The colonoscopy (D), hematoxylin and eosin stained (E) and abdominal CT (F) after sulfasalazine treatment.
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Histopathological evaluation showed chronic inflammation of colonic mucosa (Figure 1). The biopsy specimens were taken from the erythematous mucosa of transverse colon (Figure 1).