On presentation T:38.33℃C(101°F),P:124bpm,R:18/min,BP:108/58mmHg Oxygen saturation was 84%on room air. Auscultation. Lung: bibasilar crackles Heart: normal WBC:17.1×109/L( normal4-11×109/L) Neutrophil:15.6×109/L(91.2%) CT scan: multiple cavitary and pre-cavitary lesions in both lung fields measuring 1-3 cmOn presentation • T: 38.33 ℃ (101 ℉), P：124 bpm, R: 18/min, BP:108/58 mmHg • Oxygen saturation was 84% on room air. • Auscultation: • Lung: bibasilar crackles • Heart: normal • WBC：17.1×109/L (normal 4 –11×109/L) • Neutrophil：15.6×109/L (91.2%) • CT scan: multiple cavitary and pre-cavitary lesions in both lung fields measuring 1–3 cm