Fig. 1

Computed tomography findings over time. a Postcontrast image showing no abnormal findings on POD 14, 2 days before discharge. b Image obtained when the patient was readmitted on POD18 showing an irregular, 20 mm, low-density area in the S6 region of the liver. c Image obtained 8 h after admission showing that the affected area has transformed into a gas-producing abscess