CTICasesPulmonary veno-occlusive disease (PVOD) with pulmonary venous thrombosis
Imaging findings
CT angiogram shows patent pulmonary arteries but macroscopic filling defects and thrombosis in the right superior and left lower pulmonary veins, accompanied by interlobular septal thickening and pulmonary edema.
Key takeaways
PVOD is a rare form of pulmonary hypertension characterized by obstruction of the pulmonary venules. Rarely, it can manifest with macroscopic thrombosis of the larger pulmonary veins. The V/Q scan can mimic CTEPH by showing mismatched perfusion defects.
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