Pathology

Pulmonary Trunk

• Wall Thickness

Muscular Pulmonary Artieries Particle

• Media hypertrophy and muscularisation of arteries
• Cellular intima proliferation leading to concentric intimal fibrosis
• Necrotizing capillaritis
• Plexiform arteriopathy
• Loss of arterioles

Non-Muscular Precapillary Arteries

• Loss of Alveolar Capillaries
• Endothelial swelling