A nonverbal18-year-old with a history of autism, seizures, and profound intellectual disability presented to the emergency department with difficulty walking, emesis, chills, decreased energy, and decreased activity as described by his family. His white blood cell count was 22,070 cells/mcL, serum aspartate aminotransferase was 65 mmol/L, and serum alanine aminotransferase was 63 mmol/L. A computed tomography (CT) scan of the head and a lumbar puncture were normal.Upon arrival to the general medical floor, the patient's physical examination was notable for a temperature of 100.8°F and agitation. He had active bowel sounds, and his abdomen was soft, nondistended, and nontender to palpation. The remainder of his examination was unremarkable. By hospital day 1, initial blood and urine cultures showed no growth. Abdominal ultrasound showed focal nodular hyperplasia of the liver without biliary disease. Rapid plasma reagin, monospot, human immunodeficiency virus, hepatitis B virus, and hepatitis C virus serologies were negative. The epilepsy service did not feel that the increase in his serum aminotransferases was due to his antiepileptic medications. The patient remained persistently febrile up to 102.5°F in the absence of an obvious infectious source. On hospital day 3, the infectious disease service was consulted and recommended abdominal and pelvic CT, which showed an abscess of 9.7 by 8.3 cm in the right hepatic lobe and a long metallic foreign object in the cecum and ascending colon (Figure 1)