Pathology of Pulmonary Vascular Disease with Radiologic Correlation

In summary, pulmonary vascular changes are commonly observed by the pulmonary pathologist, and the majority of these changes are nonspecific and due to secondary processes. Primary (idiopathic) pulmonary vascular changes often include more severe or extreme changes including plexiform lesions and pulmonary venous occlusion. Vasculitis and capillaritis can be seen in surgical pathology specimens and are often associated with ANCA-vasculitis or collagen vascular disease. Specific vascular changes can also be observed in the neonate and posttransplant setting.