Gallstone Ileus: A Case Report in a 74-Year-Old Male.

Gallstone ileus is a rare complication of complicated gallbladder disease. Typically the result of a cholecystocholeduodenal fistula, a gallstone enters the small bowel and impacts in the ileum causing an obstruction. In this case study, a 74-year-old male presented to the emergency department with nausea, vomiting, and constipation for 2 weeks. CT revealed pneumobilia and a 3.1 cm calcified mass in the terminal ileum. The patient was successfully treated with a robotic-assisted enterotomy alone without complications.