132.2 📚 國考版

132.2.0.1 必背

• First-line treatment: amoxicillin-clavulanate OR clindamycin × 4-6 weeks
• Foul sputum = anaerobic
• Right lower lobe = aspiration position (supine)
• CXR cavity + air-fluid level = abscess
• 90% medical management; surgery rare
• TB always rule out

132.2.0.2 易混淆對照

對照	區別
Lung abscess vs empyema	Abscess = parenchymal cavity; empyema = pleural pus space
Bacterial abscess vs cancer cavitation	Bx, biopsy, CT features (irregular wall in cancer)
Aspergilloma	Pre-existing cavity (TB, sarcoid); fungal ball (“Monod sign”); not initially infectious
Bronchiectasis	Persistent bronchial dilation; Pseudomonas common; chronic

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