May Cause

Acute diffuse fine reticular lung opacities

Acute disseminated airspace opacity

Air-space opacity in leukemia or lymphoma

Chronic Kerley lines

Ground-glass pulmonary opacity

Ill-defined multifocal lung opacities

Interstitial lung fibrosis

Localized chronic pulmonary opacity

Mass-like perihilar opacity

Neonatal respiratory distress

Pulmonary disease in an immunodeficient patient

Pulmonary lobar consolidation

Pulmonary segmental consolidation

May Be Caused by

 Common

Blunt trauma

Goodpasture syndrome

Lung contusion

Renal disease

 Uncommon

Anticoagulant therapy

Arteriovenous malformation

Aspergillosis

Bleeding tendency

Bone marrow transplantation

Bronchiectasis

Bronchitis

Bronchogenic carcinoma

Bronchoscopy

Choriocarcinoma

Connective tissue disease

Drug abuse

Heart failure

Hemophilia

Hemorrhagic vascular metastasis

Henoch-Schönlein purpura

Heroin abuse

Idiopathic

Idiopathic pulmonary hemosiderosis

Infection

Kaposi sarcoma

Leukemia

Lung biopsy

Malaria

Mitral stenosis

Parasitic disease

Polyarteritis nodosa

Pulmonary embolism

Rocky Mountain spotted fever

Saprophytic fungal infection

Strongyloidiasis

Systemic lupus erythematosus

Thrombocytopenia

Wegener granulomatosis

Zygomycosis