Abstract
A 7-year-old female presented with intractable watery diarrhea, appetite loss, and weight loss. Colonoscopy showed multiple reddish sessile polyps in the rectum and sigmoid colon. Microscopic findings of biopsy specimens were compatible with cap polyposis. EGD showed nodular gastritis in the gastric antrum with positive Helicobacter pylori infection. We treated the patient by eradication therapy for Helicobacter pylori, by which the microorganism disappeared. After the therapy, her symptoms improved markedly, and colonoscopy revealed that the multiple polyps had disappeared. Our case suggests that eradication therapy for Helicobacter pylori may be one of the strategies for cap polyposis.
