Read about adenocarcinoma of the lung medical facts: what is the definition of adenocarcinoma of the lung, what are the signs and symptoms, medical treatment & how to treat adenocarcinoma of the lung, information about the causes, and related adenocarcinoma of the lung diseases.

Definition: What is "Adenocarcinoma of the lung"?


Adenocarcinoma of the lung (or lung cancer) is the leading cause of cancer deaths in both women & men in the United States & throughout the world. Lung cancer has beaten breast cancer as the leading cause of cancer deaths in women. In 2007, 160,390 people were projected to die from lung cancer in the United States, which is more than the number of deaths from colorectal, breast & prostate cancer combined. Only about 2% of those diagnosed with lung cancer that has spread to other areas of the body are living five years after the diagnosis, although the survival rates for lung cancers diagnosed at a very early stage are higher, with approximately 49% surviving for five years or longer. Cancer arises when normal cells undergo a transformation that causes them to grow & multiply without the normal controls. The cells form a mass or tumor that varies from the surrounding tissues from which it arises. Tumors are dangerous because they take nutrients, oxygen & space from healthy cells.

Symptoms & Signs

Up to a quarter of all people with lung cancer may have no symptoms when the cancer is diagnosed. These cancers typically are identified incidentally when a chest x-ray is performed for another reason. However, the majority of people develop symptoms. The symptoms are because of direct effects of the primary tumor, to effects of metastatic tumors in other parts of the body, or to disturbances of hormones, blood, or other systems caused by the cancer. Symptoms of primary lung cancers include chest pain, cough, coughing up blood & shortness of breath. Symptoms of metastatic lung tumors also depend on the location & size. About 30%-40% of people with lung cancer have some symptoms or signs related to metastatic disease.

Treatment: How to Treat "Adenocarcinoma of the lung"?

Chemotherapy & radiation may result to a cure in a small number of patients. These therapies result in decreasing the size of the tumor & are known to prolong life for extended periods in most patients.


Cigarette smoking is the most important cause of lung cancers. Research as far back as the 1950s clearly established this association. Cigarette smoke contains more than 4,000 chemicals, many of which have been identified to cause cancer. A person who smokes more than one pack per day has a risk of developing lung cancer 20-25 times greater than someone who has never smoked. Once a person quits smoking, his or her risk for lung cancer slowly decreases. About 15 years after quitting, the risk for lung cancer goes down to the level of someone who never smoked. Cigar & pipe smoking heighten the risk of lung cancer but not as much as smoking cigarettes.

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