PMC8452388_01
(a and b) presence of multilobulated aneurysm of infrarenal abdominal aorta with aortic wall thickening and subtle fatty stranding; aneurysm is indicated by arrows, on coronal and axial images from CT of the abdomen and pelvis with iodinated contrast.
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fig1
These are suggestive of mycotic aneurysms (Figures 1(a) and 1(b)).
(a) Histopathologic sections of the aorta show vasculitis of small and medium vessels with occasional eosinophils within the vessel wall. (b) Infiltration of the periaortic tissue with eosinophils and other inflammatory cells.
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fig2
It also showed eosinophilic vasculitis of mostly small and rarely medium vessels with rare fibrinoid necrosis (Figures 2(a) and 2(b)).