DIFFERENTIAL DIAGNOSIS/ ETIOLOGIES OF PNEUMONIA
Etiologies of Pneumonia
Streptococcus pneumonia
Haemophilus influenzae
Mycoplasma pneumoniae
Chlamydia pneumoniae
Staphylococcus aureus
Streptococcus pyogenes
Neisseria meningitidis
Moraxella catarrhalis
Klebsiella pneumoniae
Legionella species
Chlamydia psittaci (psittacosis)
Coxiella burnettii (Q fever)
Francisella tularensis (tularemia)
Mycobacteria
Histoplasmosis
Blastomycosis
Viral etiologies
All microorganisms are potential pathogens
Differential Diagnosis for Pneumonia
Acute respiratory distress syndrome (ARDS)
Acid reflux pneumonitis
Neoplasma
Bronchogenic carcinoma
Lymphoma
Kaposi sarcoma
Carcinoid tumor
Alveolar hemorrhage syndromes
Alveolar proteinosis
Bronchilitis obliterans with organizing pneumonia (BOOP)
Drug induced lung disease
Pulmonary eosinophilia syndrome
Microscopic polyangiitis
Radiation pneumonitis