Is a gallbladder coming back?: a seroma in the gallbladder fossa

An 88-year-old man presented to the hospital with a 2-day history of fever and vomiting. He had developed emphysematous cholecystitis 14 days earlier (Figure 1A), which was treated with laparoscopic cholecystectomy on the same day, after which he was discharged without any complications five days later. On physical examination, his vital signs were stable, but he had a low-grade fever. Only abdominal distention without icterus or abdominal tenderness was observed. Laboratory examinations showed a slightly increased white blood cell count and an elevated alkaline phosphatase level.