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Atypical pneumonia
From WikEM
Contents
Background
- Atypical bugs: chlamydia pneumoniae, legionella pneumophila, mycoplasma pneumoniae
Clinical Features
- Atypical presentation: more likely to have extra-pulmonary symptoms, i.e. arthralgias, fever, malaise, headache
Differential Diagnosis
Causes of Pneumonia
Bacteria
- Gram-positive
- Gram-negative
- Atypical pneumonia
Viral
- Common
- Influenza
- Respiratory syncytial virus
- Parainfluenza
- Rarer
- Adenovirus
- Metapneumovirus
- Severe acute respiratory syndrome (SARS)
- Middle east respiratory syndrome coronavirus (MERS)
- Cause other diseases, but sometimes cause pneumonia
Fungal
- Histoplasmosis
- Coccidioidomycosis
- Blastomycosis
- Pneumocystis jirovecii pneumonia (PCP)
- Sporotrichosis
- Cryptococcosis
- Aspergillosis
- Candidiasis
Parasitic
Evaluation
Management
- Macrolide antibiotic, e.g. azithromycin
