A 46-year-old Chinese woman presented to the emergency department with nausea and abdominal bloating, accompanied by vomiting that had increasingly worsened over the past four days. Apart from previous laparoscopic cholecystectomy and open appendicectomy, she had no other medical comorbidities. Physical examination revealed abdominal distension with central tenderness and active bowel sounds. There was no rebound tenderness or abdominal guarding. She was afebrile and her haemodynamic parameters were stable. Initial blood investigations revealed an elevated total white blood cell count Plain radiography of the abdomen (Fig. 1a) was performed at the emergency department. What do the radiographs show? Based on the patient's clinical presentation and radiographic findings, computed tomography (CT) of the abdomen and pelvis (Figs. 1b & c)