Causes of Hemoptysis - Differential Diagnosis Algorithm

Massive Hemoptysis (>I00 mL in 24 hours)

 • Malignancy

 • Bronchiectasis

 • Abscess/Mycetoma

 • Arteriovenous Malformation

Normal CXR/CT

 • Hematemesis

 • Epistaxis

 • Bronchitis

Diffuse CT Abnormalities

 • CHF

 • Bronchiectasis

 • Pulmonary Vasculitis

Infection

 • Bacterial

 • Viral

 • Tuberculosis

 • Fungal

Malignancy

Pulmonary Vasculitis

 • Lupus Erythematosus

 • Goodpasture's Syndrome

 • Granulomatosis with polyangiitis / microscopic polyangiitis

Vascular

 • Pulmonary Embolism

 • Arteriovenous Malformation



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