Sheeza Basharat8 months ago

Pulmonary Emphysema (Smoker's Lung)

Emphysema, is characterised by air-filled cavities or spaces, (pneumatoses) in the lung, that can vary in size and may be very large. The spaces are caused by the breakdown of the walls of the alveoli and they replace the spongy lung parenchyma. This reduces the total alveolar surface available for gas exchange leading to a reduction in oxygen supply for the blood. Emphysema usually affects the middle aged or older population. This is because the disease takes time to develop with the effects of smoking, and other risk factors.