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​Symptoms and Signs – Differential Diagnosis of Hemoptysis
• Abscess
• Arteriovenous (AV) fistula
• Bronchiectasis
• Bronchitis
• Cystic fibrosis (CF), bullous emphysema
• Drugs: aspirin, anticoagulants, penicillamine
• Epistaxis, trauma
• Erosion of aortic aneurysm
• Fungal infections (aspergillosis, coccidioidomycosis)
• Goodpasture’s syndrome
• Hematologic disorders (clotting abnormalities, disseminated intravascular coagulation [DIC], thrombocytopenia)
• Idiopathic pulmonary hemosiderosis
• Infection
• Laryngeal bleeding (laryngitis, laryngeal neoplasm)
• Left ventricular (LV) failure
• Mediastinal fibrosis
• Mitral stenosis
• Neoplasm (primary or metastatic)
• Parasitic infections (amebiasis, ascariasis, paragonimiasis)
• Pneumonia: Streptococcus pneumoniae, Klebsiella pneumoniae, Staphylococcus aureus, Legionella pneumophila
• Pulmonary arteriovenous (AV) fistula
• Pulmonary embolism/infarction
• Pulmonary hypertension
• Pulmonary sequestration
• Severe hypertension
• Systemic lupus erythematosus (SLE)
• TB
• Trauma (needle biopsy, foreign body, right-sided heart catheterization, prolonged and severe cough)
• Vasculitis: Wegener’s granulomatosis, Churg-Strauss syndrome, Henoch-Schönlein purpura
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