A 75-year-old man with diabetic end-stage renal disease requiring hemodialysis presented with 1 week of progressive abdominal pain and fever. Laboratory examination showed an alkaline phosphatase level of 140 IU/L and white blood cell count of 15.7 × 109/L. Noncontrast abdominal CT revealed a 2.9-cm × 3.3-cm air/fluid collection in the left hepatic lobe with a linear foreign body extending from the collection into the duodenum (Fig. 1). An upper endoscopy was performed and was notable for 2 pustular lesions and edema in the second portion of the duodenum (Fig. 2).