A rare case of cap polyposis

The patient was a 63-year-old male with mucus and bloody stool more than 20 times a day mixed with a lot of pseudomembrane. The symptoms lasted over three months. Thus, he underwent a colonoscopy in another hospital at disease onset, the polyp was found and resected during the procedure. The symptoms were reduced but recurred two weeks later. A recent colonoscopy showed a large number of erythematous inflammatory colonic polyps covered by fibrous purulent mucus. The polyps were sessile and erosive, dark red, accompanied by fibrous, purulent and mucous-like secretions, similar to those reported by Monsalve Alonso S et al.