Malignant tumour of the lung. Four major types (squamous-cell carcinoma, adenocarcinoma, large-cell carcinoma, and small-cell carcinoma) have roughly equal prevalence. Most cases are due to long-term cigarette smoking. Heavy smoking and starting smoking earlier in life increase the risk. Passive inhalation ("secondhand smoke") is linked to lung cancer in nonsmokers. Other risk factors include exposure to radon or asbestos. Symptoms, including coughing (sometimes with blood), chest pain, and shortness of breath, seldom appear until lung cancer is advanced, when treatment with surgery, chemotherapy, and radiation or some combination of the three is less effective. Most patients die within a year of diagnosis
A type of cancer that grows in the lung or the tissues around it There are two main types: small cell and non-small cell See lung cancer section
An uncontrolled growth of abnormal cells in the lungs which normally results in the death of the host
Cancer that may appear in the trachea, air sacs and other lung tubes It may appear as an ulcer in the windpipe, as a nodule or small flattened lump, or on the surface blocking air tubes It may extend into the lymphatic and blood vessels (CMD 1997)
[ 'l&[ng] ] (noun.) before 12th century. Middle English lunge, from Old English lungen; akin to Old High German lungun lung, lIhti light in weight; more at LIGHT.