The growth of cancer symptoms and attacks (invasion) of lung tissues and the environment-the environment may interfere with breathing, leading to symptoms such as cough, shortness of breath, wheezing (wheezing), chest pain, and coughing up blood (hemoptysis). If the symptoms of cancer has invaded nerves, for example, he may cause shoulder pain that moves down the outside of the arm (called Pancoast's Syndrome) or paralysis of the vocal cords leading to hoarseness (husky). Assault esophagus may lead to difficulty swallowing (dysphagia). If a large airway is obstructed, its flat part of the lung may occur and cause infections (abscesses, pneumonia) in an unobstructed area.