PMC6431392_01
Preoperative computed tomography of the abdomen. (a) The initial scout film shows severely dilated sigmoid colon. (b) Coronal section. (c) Sagittal section.
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fig1
Abdomen computerized tomography showed distended sigmoid colon with collapsed rectum and no obstruction (Figure 1).
(a) Megacolon as seen at the time of laparotomy. (b) Submucosal granuloma around eggs in the colonic wall (low power). Colonic mucosa shows chronic inactive colitis, mild with mild crypt distortion. There was no dysplasia or malignancy. (c) Submucosal granuloma around eggs in the colonic wall (high power).
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fig2
He underwent laparotomy (Figure 2(a)) and extended hemicolectomy of the affected segment, with colorectal anastomosis. The pathology unexpectedly showed chronic schistosomiasis in the colonic wall (Figures 2(b) and 2(c)).