Radiology for the surgeon: Soft-tissue case 57. Superior mesenteric vein thrombosis.

Presentation A 43-year-old woman presented with a 5-day history of abdominal pain, fever and vomiting. There was no diarrhea, constipation or abdominal distension. She had undergone laparoscopic appendectomy 2 weeks before the onset of these symptoms. On examination, there was nonspecific abdominal tenderness. Bowel sounds were normal. The patient underwent plain abdominal radiography and contrast-enhanced CT of the abdomen. The representative images (Fig. 1, Fig. 2) are shown. FIG. 2. Axial contrast-enhanced CT image at the level of the pancreas. FIG. 1. Axial contrast-enhanced CT image below the level of the pancreas. What is your diagnosis?