Lymph cancer

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The field of medicine concerned with the treatment of cancer is oncology. Cancer has become an important problem with the rise in life expectancy, as the abovementioned mutations become more likely the longer a person lives. Though great progress in treatment has been made, most cancers in advanced stages remain incurable and ultimately fatal.

Treatment of cancer typically involves surgery to remove tumors and nearby lymph nodes to which the cancer may have spread, combined with radiation therapy and/or chemotherapy. The latter two target cells in the body that are rapidly dividing. This includes the cancer cells but also certain healthy ones, which is the reason for the severe side effects of these treatments.

Cancer is, ultimately, a disease of genes. Typically, a series of several mutations is required before a cell becomes a cancer cell. We distinguish between oncogenes, which promote cancer when "switched on" by a mutation, and tumor suppressor genes, which prevent cancer unless "switched off" by a mutation. These mutations can have various causes: radiation or chemicals called carcinogens; some inherited predisposition is not uncommon; some viruses that can cause cancer have also been described. Usually, they carry in their genome some oncogene or tumor suppressor inactivating gene. In about 15% of all cancers, viruses seem to play a role; Bacteria, like Helicobacter pylori, also induce carcinogenesis by a process of chronic inflammation. Finally, damage by free radicals, which are a natural by-product of oxygen metabolism, can cause mutations in the DNA.

  • Cancer Advice UK
    Advice and information about diagnosis and treatment issues. Includes leaflets, book suggestions, links and support groups.
  • Cancer Chart
    Quick reference listing of the most common tumor types.
  • CancerSource
    Provides information about prevention, detection, diagnosis, treatment and symptom management. Offers access to news, support groups and email lists.
  • Ladies Home Journal: Cancer
    Links to articles about skin and breast tumors.
  • Chemotherapy-Induced Nausea And Vomiting
    A detailed review of this subject in pdf format aimed at the professional level.