What is chronic dilation and distension of the bronchial walls?

The correct medical term for chronic dilation and distension of the bronchial walls is bronchiectasis. It refers to the irreversible widening, enlargement, and inflammation of the bronchi, which are the large airways that carry air to and from the lungs. Bronchiectasis typically affects the smaller, medium-sized bronchi, and can lead to a range of respiratory symptoms, including persistent cough, shortness of breath, excessive mucus production, coughing up blood (hemoptysis), and recurrent infections.