Spontaneous Renal Artery Dissection in COVID-19 Pneumonia: Potential Danger of Cytokine Storm

Figure 1

(a) Axial MIP CT image and (b) anterior volume-rendered 3D MPR coronal image were obtained after intravenous contrast material in arterial phase demonstrates focal thrombosis in the mid-left main renal artery (orange circle) and dissection flap (straight orange arrow in a), causing significant stenosis (orange straight arrow in b) and near-complete nonopacification of the upper segmental branch of the left renal artery for a length of approximately 3–4 mm with narrowed caliber and attenuated flow in the rest of the segmental and subsegmental branches (angled orange arrow in b), resulting in patchy cortical nonenhancement, predominantly involving the upper half and few discrete areas in the lower half of the left kidney, suggestive of infarct (orange rectangular in b), and also demonstrates normal right renal artery (red circle in a).

(a)

(b)