Bronchiectasis is a disease of the lungs where part of the bronchial tree becomes inflamed and dilated and the lung tissues become irreversibly damaged. It usually arises from bacterial infections. Most cases of bronchiectasis are referred to as "wet" because they are accompanied by excessive amounts of sputum, or lung mucus that is coughed up. But bronchiectasis sicca (also called dry bronchiestasis) has the symptoms of the wet version but without any sputum. The dry version is much rarer than the wet version. Treatments include surgery to remove infected and damaged tissue, antibiotics, and inhaled steroid therapy.