What does a barrel chest look like?

A barrel chest is characterized by a rounded, bulging appearance of the chest, resembling the shape of a barrel. This condition often results from an increase in the anteroposterior diameter of the thoracic cavity, commonly seen in individuals with chronic respiratory conditions like emphysema. The ribs may appear more horizontally aligned rather than sloping downwards, and the sternum may protrude slightly. Overall, the chest looks broader and more prominent from front to back.