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Lung - Emphysema - Gallery

Image of emphysema in the lung from a male F344/N rat in a chronic study
Lung - Emphysema in a male F344/N rat from a chronic study. The alveolar septa are absent in a region of the lung, creating one large airspace.
Image of emphysema in the lung from a male F344/N rat in a chronic study
Lung - Emphysema (arrows) in a male F344/N rat from a chronic study. The peripheral airspaces are enlarged (arrows), but the rest of the lung is poorly inflated.
NTP is located at the National Institute of Environmental Health Sciences, part of the National Institutes of Health.