Fig. 1

Representative images of abdominal ischemic complications. Computed tomography scans from COVID-19 patients with ischemic complications. A, B Axial and sagittal CT images of a 63-year-old patient show evidence of ischemic colitis involving the transverse colon which looks overdistended (white thin arrow, A), with thin non-enhancing walls and evidence of pneumatosis coli (white arrows, A and B). The main mesenteric vessels were patent (not shown). C, D Axial and coronal CT images of a 62-year-old patient revealed superior mesenteric vein thrombosis (yellow arrow, C) and dilated small bowel loops with pneumatosis intestinalis (yellow arrowhead, C). Concomitant signs of renal infarctions were also noted (yellow curved arrows, C). The same patient also showed inferior cava vein thrombosis (thin yellow arrow, D). E, F Sagittal and coronal CT images of a 79-year-old patient with markedly thickened and layered small bowel walls (red arrows, E and F) associated with multiple peripheral splenic infarcts (red arrowheads, E) with areas of mottled increased attenuation; the main splenic vessels were patent (not shown)