PMC7218446_01
Abdominal X-ray showed no pathological air-fluid levels and no free subphrenic gas
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F1
Abdominal X-ray showed no pathological air-fluid levels and no free subphrenic gas (Figure 1).
Abdominal US image of the left lower quadrant showed a reactive bowel wall thickening of the descending and the sigmoid colon with inflammatory changes in the pericolonic fat, which appeared as an adjacent, oval, non-compressible, hyperechoic mass, without internal vascularity, surrounded by a subtle hypoechoic line, and at least three perivisceral lymph node formations that were likely to be reactive
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F2
An evaluation with abdominal US was performed and revealed a reactive bowel wall thickening of the descending and the sigmoid colon with inflammatory changes in the pericolonic fat, which appeared as an adjacent, oval, non-compressible, hyperechoic mass, without internal vascularity, surrounded by a subtle hypoechoic line and at least three perivisceral lymph node formations that were likely to be reactive (Figure 2).
Abdominopelvic computed tomography with intravenous and oral contrast agents (axial and coronal scans) showed a moderate reactive wall thickening of the descending and the sigmoid colon and a non-enhancing adjacent fat-density ovoid structure with high-density rim and surrounding inflammatory fat stranding
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F3
Abdominopelvic CT with intravenous and oral contrast agents was also performed and revealed a moderate reactive wall thickening of the descending and the sigmoid colon and a non-enhancing adjacent fat-density ovoid structure (16   18   15 mm) with high-density rim and surrounding inflammatory fat stranding (Figure 3).