The symptoms of lung cancer, lung cancer is the world's population on occupational health and life-threatening one of the largest cancer. 1999 worldwide, up to 100 million new cases each year, ranking first in male cancer mortality. Lung cancer incidence in many countries continued to show a growing trend. China's annual rate of lung cancer incidence rate increased by 4.5%. Also the recent rise in female lung cancer incidence, with the increase in female smoking and passive smoking and the kitchen air pollution. It is predicted that the early 21st century the most common diseases is likely to be lung cancer and AIDS.
The lungs are the body's respiratory organs, the trachea, bronchi and alveoli at all levels of composition, occurred in the bronchial and alveolar epithelial cells as lung cancer. Clinical tumor growth on the basis of different parts, sub-central lung cancer and peripheral lung cancer. Occurred in three or more known as central bronchial lung cancer, bronchial less in four of lung cancer called peripheral lung cancer.
Early symptoms of lung cancer :
(1) chest pain: one-third to three-fifths of the patients had chest pain;
(2) chest tightness, shortness of breath: one-tenth to one half have this symptom; fever: obstructive pneumonia or cancer of the heat caused by heat;
(3) hemoptysis: one-third to one half of the patients had this symptom, mostly for occasional blood stained sputum, as about one third of the patients as the first;
(4) pulmonary symptoms: bone and joint disease, ectopic endocrine syndrome. Therefore, to raise awareness of these symptoms of lung cancer, if there is a similar situation to the hospital in time. By chest X-ray detection, sputum cytology, bronchoscopy, CT, MRI, percutaneous wear, lymph node biopsy, pleural biopsy, tumor markers and other methods. Early diagnosis of lung cancer treatment has played a significant role in good or bad.
(5) Cough: Cough as the initial symptom in about half the patients to two-thirds; symptoms caused by tumor metastasis, accounting for about 10%;
Late symptoms of lung cancer :
(1), hoarseness is the most common symptoms. Control function of the left recurrent laryngeal nerve pronounced downward from the neck to the chest, the heart of the great vessels to bypass the line back up to the throat, which dominated the left side of the vocal organs. Therefore, if the left side of the tumor and mediastinal invasion, the recurrent laryngeal nerve oppression, hoarseness it had, but no sore throat and other symptoms of upper respiratory tract infection;
(2) violations of the pleura, can cause pleural effusion, often is bloody. A lot of fluid, can cause shortness of breath. In addition, violations of the pleura and chest wall cancer, can cause severe chest pain continued.
(3) on the leaves at the top of the lung, can invade and oppression in the chest catchy organ tissue. If the first rib, subclavian vein, brachial plexus, cervical sympathetic, etc., resulting in severe chest pain, upper extremity venous engorgement, edema, arm pain and upper limb movement disorder, touched upon the same side of the face drooping, miosis, enophthalmos , such as cervical sympathetic facial sweat-free syndrome. Hematogenous metastasis of lung cancer after the invasion of organs produced by different symptoms.
The symptoms of lung cancer (4) in the mediastinum on the right side superior vena cava, it will come from the upper limbs and head and neck venous transferred back to the heart. If the mediastinal tumor invasion and oppression of the right superior vena cava, the original will return to poor jugular vein engorgement due to the last will result in the face and neck edema, which need to be timely diagnosis and treatment.