The uncontrollable growth of lung tissue cells leads to tumors and consequent lung cancer. It is the leading cause of cancer death in men and women between the ages 45 and 70 and exists as two kinds. Primary lung cancer starts in the lungs and secondary lung cancer that starts somewhere else in the body and spreads to the lungs.
Most lung cancer cases are carcinomas or malignant cancer that stems from epithelial cells. Lung carcinoma exist in two types, which are categorized by the size and appearance of malignant cells. Continue reading ‘Lung cancer’
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