Pulmonary capillaritis Diffuse alveolar damage
Systemic lupus erythematosus Systemic lupus erythematosus
Goodpasture syndrome Radiation therapy
Antiphospholipid syndrome Crack cocaine inhalation
Wegener granulomatosis Cytotoxic drugs
Microscopic polyangiitis Acute respiratory distress syndrome
Mixed cryoglobulinemia Bland pulmonary hemorrhage
Behçet syndrome Multiple myeloma
Polymyositis Subacute bacterial endocarditis
Scleroderma Systemic lupus erythematosus
Rheumatoid arthritis Goodpasture syndrome
Henoch-Schönleinpurpura Negative pressure pulmonary edema
Pauci-immune glomerulonephritis Mitral stenosis
Mixed connective tissue disorder Coagulation disorders
Idiopathic pulmonary fibrosis Idiopathic pulmonary hemosiderosis
IgA nephropathy Drugs
Ulcerative colitis Unclassified
Myasthenia gravis Pulmonary capillary hemangiomatosis
Acute lung allograft rejection Lymphangioleiomyomatosis
Autologous bone marrow transplant Pulmonary veno-occlusive disease
Table 2: Causes of alveolar hemorrhage