(a)
(b)
(c)
(d)
(e)

Figure 2: Colonoscopy image at ascending colon (a), at sigmoid colon (b), and at rectum (c). H-E staining x100 of biopsy specimen (d). Apoptotic bodies (arrows) at x400 (e). Edematous surface and scattered erosion were observed at whole colon and rectum. (a~c) Desquamated epithelium, interstitial edema, and submucosal fibrosis were seen as a result of inflammation. (d) Enlarged image showed submucosal lymphocyte infiltration and apoptotic bodies. There were no inclusion body cells (e).