Schistosomal (bilharzial) polyps: Travel through the colon and beyond

Figure 1 Schistosomal polyp. A: Small Schistosomal polyp located in the rectum. Note its dark red color with minute surface ulcerations; B: Surgical specimen of huge lobulated Schistosomal polyp morphologically and radiological confused with colo-rectal cancer; C: Schistosomal polyp with noticeable mucoid hyperplasia.

Figure 2 Active schistosomal granuloma; multiple schistosomal eggs in the submucosa surrounded by cellular infiltrate composed of eosinophils, lymphocytes, plasma cells and macrophages.

Figure 3 Schistosomal granuloma infiltrated by fibroblasts with dense submucosal fibrosis.