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Insights into Imaging
Fig. 3 | Insights into Imaging

Fig. 3

From: Imaging of intestinal vasculitis focusing on MR and CT enterography: a two-way street between radiologic findings and clinical data

Fig. 3

Intestinal vasculitis in a 35-year-old female with known Takayasu arteritis presenting with RLQ pain and elevated ESR. Axial contrast-enhanced CT scan (A) shows mural thickening and severe stenosis at the origin of the celiac artery (thin black arrow). Axial CT image (B) demonstrates circumferential mural thickening and submucosal edema at a single distal ileal segment (elbow arrow). MRE (C) was done following corticosteroid therapy after six days. Axial T2-W image shows complete resolution of corresponding ileal involvement (thick white arrow). Axial post-contrast T1-W image (D) displays concentric and irregular mural thickening and enhancement of abdominal aorta (black dotted oval) with double rings appearance (inner low and outer high enhancement). MR angiography (E) was performed. MIP image shows irregularity and multi-segmental stenosis at the distal abdominal aorta (thin white arrows). There is also bilateral stenosis at the origin of renal arteries (white arrowheads). The proximal segment of SMA shows irregularity and severe stenosis (white dotted oval). Abnormal dilatation of the arc of Riolan (white curved arrows) is evident, which supplies collateral flow to the SMA territory

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