Cancer Research Project

Topics: Cancer, Cervical cancer, Metastasis Pages: 3 (1016 words) Published: November 16, 2006
By Chantal Deller

Cancer is a group of diseases that are cell-related. In the event of cancer, regular body cells begin changing and growing in improper ways. Regular cells grow, divide and eventually die off. Irregular cells (cancerous cells) simply keep growing and divide out of control – they don't die. Different types of bodily tissues are made up by different types of bodily cells – bone cells make up bone tissue, for example. Because of this, the different types of cells that can become cancerous become different types of cancer – cancerous bone cells become bone cancer, for example, while cancerous breast cells cause breast cancer. Cancer cells usually group together to form a ‘tumour' – an abnormal mass of tissue. The tumour can destroy or invade normal cells situated close to it and cause pressure on and destroy bodily tissue surrounding it. Cancer cells can break away from the original tumour and travel to other areas of the body. These can clump together again to form new tumours. The act of tumours spreading is called metastasis, and this is how cancer is spread throughout the body: migration of cancerous cells. Cancer can be either primary or secondary – primary cancer is denoted by the first location of the tumour, whereas secondary cancer is any cancerous tumour or tumours that have been spread (or metastasised) from the original tumour. Cervical cancer is caused by malignant (cancerous) tumours in the cervix. It is the second most common cancer found in women all over the world, and is the third leading killer. The human papillomavirus (HPV) infection is responsible for over 90% of cervical cancers (and is known to be responsible for multiple other types of cancer). Further research has shown that in nearly all cases, a patient must be infected with HPV to develop cervical cancer, and so cervical cancer is viewed by the medical society as a sexually transmitted disease, though the virus can be contracted by simple...

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