Pulmonary Veno-Occlusive Disease

Pulmonary Veno Occlusive Disease; Disease, Pulmonary Veno-Occlusive; Diseases, Pulmonary Veno-Occlusive; Pulmonary Veno-Occlusive Diseases; Veno Occlusive Disease, Pulmonary; Veno-Occlusive Diseases, Pulmonary
Obstruction of the small- and medium-sized pulmonary veins by fibrous proliferation of the intima and media or by thrombosis or a combination of both.