Lung Pathology

• Inflammatory exudation in alveoli and interstitial spaces
• Monocytic and lymphocytic infiltration of lung tissue
• Hyperplasia of alveolar epithelial cells and fibrous tissue
• Fibrosis of lung tissue

Chest X-rays of SARS Patient
(http://www.blackwell-synergy.com/servlet/useragent?
func=synergy&synergyAction=showFullText&doi=10.1046/j.1440-
1843.2003.00525.x&area=production&prevSearch=allfield%3A%28SARS%29)

Syncytia

Syncytia are also known as multi-nucleated giant cells. They result when neighboring cells fuse with one another. Syncytia have been observed in the lungs of SARS-infected patients.