Lung cancer is a malignant tumour of the lungs. Most commonly it is bronchogenic carcinoma (about 90%). Lung cancer is the most lethal malignant tumour worldwide, causing up to 3 million deaths.
Exposure to carcinogens, such as those present in tobacco smoke, immediately causes small changes to the tissue lining the bronchi of the lungs (the bronchial mucous membrane). This effect is cumulative, and over time with continued exposure more and more tissue gets damaged until a tumour develops. If the tumour grows inwards it may obstruct the air passageway, causing breathing difficulties. The lungs may then collapse and infections can develop, leading to lung abscess. The patient here would start to cough up blood-stained material. However, if the tumour grows outwards in to the lung it may not even be noticed by the patient before it starts to spread to other parts of the body.
lung cancer symptoms
Early symptoms of lung […]
Published by Staff
Continue reading: Lung Cancer
Related with "Lung Cancer"
Lung Cancer Conditions
Lung cancer in non-smokers is very rare, occurring in only about 10% of the cases, meaning that in almost 90% of the lung cancer cases, cigarette… Lung Cancer Conditions[...]
Does Radon Really Cause Lung Cancer? The Truth…
Bethlehem PA - July 12, 2006. There has been much in the news lately about the link between radon and lung cancer. The untimely death of Dana Reeves… Does Radon Really Cause Lung Cancer? The Truth...[...]
Lung Cancer. A New Way Of Treating Cancer
Lung Cancer. A New Way Of Treating Cancer Filed under: cancer treatment Lung Cancer A New Way Of Treating Cancer breast cancer information cervical… Lung Cancer. A New Way Of Treating Cancer[...]
Radon Causes Lung Cancer But How Do They Know…
We’ve all heard that indoor radon exposure causes lung cancer. In fact US EPA says that radon… Radon Causes Lung Cancer But How Do They Know...[...]
Lung Cancer and Detection in the same Breath
We should not screen for lung cancer unless the trials demonstrate a reduction in mortality. In the 1970s and ’80s, there was great interest in… Lung Cancer and Detection in the same Breath[...]
