A Fatal Case of Diffuse Alveolar Hemorrhage in the Setting of Systemic Lupus Erythematosus: A Case Report and Review of Noninfectious Causes of Acute Pulmonary Hemorrhage in Adults

Figure 2

Gross image of the right and left lungs (a) shows diffuse bilateral hemorrhage worse in the lower lobes. Microscopically, there is diffuse alveolar hemorrhage with arterial thrombi (circle, b), capillary microthrombi (black arrows, b and d), foci with acute inflammation and capillaritis (green arrows, c), and acute pneumonic consolidation (red arrow, d) (panels b, c, and d, hematoxylin and eosin stains, magnification, 20x).