pulmonary disorders
Diffuse Alveolar Hemorrhage
Pathophysiology of Diffuse Alveolar Hemorrhage
Diffuse alveolar hemorrhage results from widespread damage to the small pulmonary vessels, leading to blood collecting within the alveoli. If enough alveoli are affected, gas exchange is disrupted. The specific pathophysiology and manifestations vary depending on cause. For example, isolated pauci-immune pulmonary capillaritis is a small-vessel Overview of Vasculitis limited to the lungs; its only manifestation is alveolar hemorrhage typically affecting people aged 18 to 35 years. 