Abstract
In making a presumptive diagnosis of eosinophilic enteritis prompting specialist referral, primary care physicians are advised to focus on patients' medical history, medication history, clinical course, and blood tests, while bearing in mind that a definitive diagnosis of eosinophilic enteritis requires a histopathological assessment of biopsy specimens obtained during endoscopy. Colonoscopic findings in eosinophilic enteritis of this case included redness, erosion, and edema in the ileum.