RESUMO
Diffuse alveolar hemorrhage (DAH) is a relatively uncommon disorder that most often occurs in patients with systemic autoimmune or idiopathic disease. DAH may result from coagulation disorders, inhaled toxins, or infection. The principal histopathologic features of pulmonary capillaritis include capillary wall necrosis with infiltration by neutrophils, interstitial erythrocytes, and/or hemosiderin, and interalveolar septal capillary occlusion by fibrin thrombi. New inert materials such as polymerized silicones, artecoll is used as injectable aesthetic microimplants. They are still able to stimulate a clinically evident granulomatous reaction. The rate of allergic reaction is very low. We report the case of diffuse alveolar hemorrhage following administration of artecoll.