case_images: PMC9052978_01
case_images: High magnification of an interlobular septum showing occlusion of a vein. H&E stain with 200x magnification
case_images: PUL2-12-e12046-g001.jpg
case_images: PMC9052978_01_PUL2-12-e12046-g001.jpg
case_images: pul212046-fig-0001
case_images: Biopsy findings were significant for capillary proliferation, marked intimal and medial thickening of the pulmonary arterioles, sclerosis of pulmonary veins with focal occlusion associated with dilated lymphatics (Figure 1).
case_images: Movat stain section showing an interlobular septum with a pulmonary vein showing thickening of the wall with marked fibrous proliferation
case_images: PUL2-12-e12046-g004.jpg
case_images: PMC9052978_01_PUL2-12-e12046-g004.jpg
case_images: pul212046-fig-0002
case_images: Special stain with movat pentachrome showed intra-alveolar hemosiderin and septal thickening with collagen deposition associated with veno-occlusive changes in pulmonary veins with sclerosis and fibrosis, together with capillary proliferation and arterial changes (Figure 2).