An unusual cause of colonic stricture with polyps

Laboratory results were as follows: white cell count, 13.4×109/L; haemoglobin, 13.5 g/dL; platelet count, 311×109/L; erythrocyte sedimentation rate, 64 mm/hour; albumin, 3.62 g/dL; and C-reactive protein, 3.97 mg/dL. Infectious enteritis and intestinal tuberculosis were excluded based on negative bacterial and tuberculosis cultures of mucosal samples and negative interferon-gamma release assays. Histologically, multiple diverticula were observed ( figure 2 A) and the filiform polyps showed normal colonic mucosa with non-specific inflammatory changes, and fibrosis and oedema...