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SEM of cancer cells in lung alveoli
Lung cancer. Scanning electron micrograph of cancer cells proliferating inside air sacs (alveoli) in a human lung. These cells are part of an adenocarcinoma, a malignant tumour derived from glandular epithelial tissue. Lung cancer is the leading cause of cancer deaths in men and the second most common cause in woman (after breast cancer). Fewer than 10% of patients survive for five years after diagnosis. The cause of the disease is not always clear; although cigarette smoking is known to cause other forms of lung cancer, such as squamous cell carcinoma, the link between tobacco and adenocarcinoma remains unproven. Magnification x3500 at 10x8 inch size.
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