• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Cancer is a disease where cells grow out of control and invade, erode and destroy normal tissue.

Extracts from this document...


Cancer Cancer is a disease where cells grow out of control and invade, erode and destroy normal tissue. The driving forces behind the development of cancer are damaged genes. The gene damage is often caused by environmental factors like smoking. There are over 200 different types of cancer that can occur anywhere in the body. They all have different causes, different symptoms and require different types of treatment. Cancers develop because of a complicated interaction between our genes, our environment and chance. In Britain, the lifetime risk of developing cancer is more than one in three. So it's likely that every family will come into contact with the disease in some way. Different cancers affect people at different ages, but the risk of getting the disease rises significantly as we get older. ...read more.


Malignant tumours Grow much faster than Benign tumours, they spread through and destroy surrounding tissues and also spread to other parts of the body. It is this ability to spread that make malignant tumours so dangerous. They can break away and are carried in the blood or lymphatic system to other parts of the body; there they can start to grow new tumours. Another difference from Benign tumours is that Malignant ones are made up not of ordinary sells, but of cancer cells. Normal cells have a number of important characteristics. They can reproduce themselves exactly, stop reproducing at the right time, stick together in the right place, self-destruct if they are damaged and become specialised. Cancer cells do not have these characteristics. Consequently, they continue to reproduce and double ignoring the signals from the body telling them to stop. ...read more.


Radiotherapy - Doctors may use radiotherapy before surgery to reduce the size of the cancer. More commonly, women will receive radiotherapy two to four weeks after breast conservation surgery to destroy any cancer cells that may still be present. Sometimes, women might also have radiotherapy after mastectomy (removal of the whole breast). If the cancer has spread to other parts of the body, radiotherapy may be used to relieve symptoms such as bone pain. Chemotherapy - Doctors often treat breast cancer with a combination of chemotherapy drugs. Women may receive chemotherapy before or after breast surgery. The doctor can also use chemotherapy to treat cancer that has come back. Hormone therapy - The female hormone oestrogen is a major factor for the growth of many breast cancers. Hormone therapy lowers the amount of oestrogen in the blood, or blocks oestrogen from stimulating the cancer to grow. Tamoxifen is the most common hormone therapy used. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Healthcare section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Healthcare essays

  1. Communicable and Non-Communicable Disease: Tuberculosis and Cystic Fibrosis

    In sufferers of cystic fibrosis, however, this mucus is excessively thick and sticky, as a result of the faulty allele responsible altering the movement of salt and water in and out of the cells which synthesise it.39 This mucus is difficult to expel and therefore builds up within the lungs,

  2. Ovarian cancer

    contralateral ovary, omentum, and biopsied nodes, a case can be made for (a)no adjuvant therapy after complete surgical removal and (b) removal of only the diseased ovary in an occasional patient who may be young and desirous of preserving her reproductive capacity (Altchek, 97).

  1. aids in usa

    This overall pattern masks variation between exposure groups. Among men who have sex with men, there has been a steady rise in new infections since the early 1990s. Interpreting HIV & AIDS statistics for the USA In order to monitor the spread of the American epidemic and to assess the

  2. Health and Disease

    Other professional workers not having the right information But all services now need to have policies and procedures on the confidentiality of recorded information. Effective communication - The GSCC code of practice identifies that care workers must communicate in an appropriate, open, accurate and straightforward way.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work