What is emphysema? What are some common findings in a patient with emphysema?

a) Emphysema is a lung disease characterized by difficulty breathing and destruction of lung tissue. Common findings include shortness of breath, wheezing, coughing, and barrel-shaped chest.
b) Emphysema is a skin condition characterized by redness, itching, and swelling. Common findings include rash, blisters, and skin irritation.