# A Unique Case of Unprovoked Pulmonary Venous Thrombosis in a Postpartum Female Following COVID-19 Infection

## TL;DR

A postpartum woman developed unprovoked pulmonary venous thrombosis after a mild case of COVID-19, highlighting the virus's potential to cause blood clots.

## Contribution

Reports a rare case of post-COVID-19 pulmonary venous thrombosis in a postpartum woman without other risk factors.

## Key findings

- The patient had unprovoked PVT following a nonhospitalized COVID-19 infection.
- Imaging confirmed PVT with ground glass infiltrates despite a negative hypercoagulable workup.
- Treatment with heparin and apixaban led to thrombus resolution, emphasizing the need for vigilance in post-COVID patients.

## Abstract

SARS-CoV-2 can induce a hypercoagulable state, occasionally resulting in pulmonary venous thrombosis (PVT) due to inflammation and endothelial injury. Documented cases of PVT with active COVID-19 and post-COVID are rare. We report a 40-year-old postpartum female with unprovoked PVT following a recent nonhospitalized COVID-19 infection. She presented with cough, right pleuritic chest pain, and worsening dyspnea. Imaging confirmed right lower lobe PVT with ground glass infiltrates. Despite a negative hypercoagulable workup, the patient’s postpartum and post-COVID status suggest an unprovoked PVT. Treated with a high-intensity heparin drip and transition to apixaban, she showed resolution of the thrombus. This case underscores the importance of considering COVID-19 as a potential risk factor for venous thromboembolism and highlights the need for vigilant monitoring in post-COVID-19 patients.