Barrel chest

Barrel chest refers to an increase in the anterior posterior diameter of the chest wall resembling the shape of a barrel. It is most often associated with emphysema. There are two main causes of the barrel chest phenomena in emphysema. 1) Increased compliance of the lungs leads to the accumulation of air pockets inside the thoracic cavity. 2) Increased compliance of the lungs increases the intrathoracic pressure. This increase in pressure allows ... more
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