Abstract
A 76-year-old woman visited our hospital complaining of diarrhea and left lower abdominal pain. Colonoscopy showed erythema and edema of the mucosa. Non-specific enteritis was suspected and the patient was observed with supportive treatment. However, as the patient’s symptoms continued to deteriorate, further investigation was conducted. A complete blood count showed eosinophilia, which led to the suspicion of eosinophilic gastroenteritis. Therefore, prednisolone was started, both for diagnostic and therapeutic purposes. However, the symptoms did not improve. Findings of a repeat colonoscopic examination suggested cap polyposis (CP) . After eradication of H.pylori infection with antibiotic therapy, her clinical condition and endoscopic findings improved remarkably, consistent with previous reports.
