Berendsen L, Bouman DE and Venneman NG
An Endoscopic Retrograde Cholangiopancreatography (ERCP) was performed because of suspected ascending bacterial cholangitis due to common bile duct stones. A prominent papilla with an abnormal aspect was noticed. Given the suspicion of a malignancy, a CT-abdomen and additional gastroduodenoscopy were performed for further analysis. These resulted in the final diagnosis: duodenal diverticulitis, which apparently mimicked ascending bacterial cholangitis. Conservative treatment with supportive care resulted in full recovery.