CHRIS BJORNBERG / SCIENCE PHOTO LIBRARY CHRIS BJORNBERG / SCIENCE PHOTO LIBRARY
False-colour X-ray showing lung cancer (front view). This enhanced image colours the lungs purple inside the ribcage; with the heart (centre) coloured red. The lung at right is can- cerous, with the tumour showing up as a fibrous white growth. Lung cancer is one of the most mali- gnant of tumours; in most cases associated with cigarette smoking. Secondary malignant tumours which have spread from other parts of the body to the lungs, are also common. To confirm this x-ray diagnosis it is necessary to examine lung tissue microscopically for the presence of cancer cells. The simplest test is to examine samples of phlegm; otherwise a biopsy is performed.
Model release not required. Property release not required.