# Subacute Limb Ischemia Suspected from COVID-19-Related Arterial Thrombosis Presenting with Local Occlusion Site Tenderness

## TL;DR

A man developed leg pain and lung issues weeks after a COVID-19 infection, leading to a diagnosis of arterial thrombosis linked to the virus.

## Contribution

Highlights that acute limb ischemia can occur weeks after a COVID-19 infection due to arterial thrombosis.

## Key findings

- A 59-year-old man presented with leg pain and lung symptoms weeks after a COVID-19 infection.
- CT scans showed popliteal artery occlusion and lung consolidation consistent with post-COVID-19 pneumonia.
- The case suggests arterial thrombosis as a cause of limb ischemia even after the acute phase of infection.

## Abstract

A 59-year-old man was admitted to our hospital with severe popliteal fossa pain and mild left calf claudication. He had had an episode of pyrexia and dyspnea approximately 3 weeks prior. Contrast-enhanced computed tomography revealed acute occlusion of the left popliteal artery and multiple infiltration shadows with bilateral multifocal parenchymal consolidation of the lungs, suggesting post-coronavirus disease 2019 (COVID-19) pneumonia. As he had no comorbid risk of cardiogenic embolism or atherosclerosis, we diagnosed him with COVID-19-related arterial thrombosis. COVID-19-related arterial thrombosis should be considered a possible cause of acute limb ischemia, even when ischemic symptoms occur several weeks post infection.