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Figure 2. A 22-year-old man with known familial Mediterranean fever presented with fever, lower abdominal pain and tenderness. (a) Contrast enhanced CT scan at the upper abdominal level shows engorged mesenteric vessels and slightly enlarged mesenteric lymph nodes (small arrows). An enlarged retroperitoneal lymph node is also demonstrated. (b) Contrast enhanced CT a scan at the pelvic level shows slight infiltration of the intra-abdominal fat with higher attenuation than the uninvolved peritoneal fat (arrowheads), thickening of the parietal peritoneum anteriorly (arrow) and some mural thickening of the small bowel loop (small arrows), compatible with focal mild peritonitis.
