Oncogenic Viruses and Bacterial Carcinogens
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Questions and Answers

Which virus is primarily associated with causing adult T-cell leukemia/lymphoma?

  • Hepatitis B virus (HBV)
  • Human papilloma virus (HPV)
  • Human T-cell leukemia virus (HTLV-1) (correct)
  • Epstein-Barr virus (EBV)
  • Which of the following viruses is linked to hepatocellular carcinoma?

  • Human papilloma virus (HPV)
  • Epstein-Barr virus (EBV)
  • Hepatitis B and C viruses (HBV + HCV) (correct)
  • Herpes virus (HHV8)
  • What type of cancer is predominantly caused by Human papilloma virus (HPV)?

  • Kaposi sarcoma
  • Gastric adenocarcinoma
  • Burkitt lymphoma
  • Benign squamous papilloma (correct)
  • Which oncogenic virus is associated with Kaposi sarcoma?

    <p>Herpes virus (HHV8)</p> Signup and view all the answers

    What type of lymphomas can occur as a result of infection with Helicobacter pylori?

    <p>Gastric lymphomas (MALT)</p> Signup and view all the answers

    Study Notes

    Oncogenic Viruses

    • Certain viruses are linked to cancer development.
    • RNA viruses associated with cancer include:
      • Human T-cell leukemia virus (HTLV-1) causing adult T-cell leukemia/lymphoma.
    • DNA viruses linked to cancer include:
      • Epstein-Barr virus (EBV) causing Burkitt lymphoma, Hodgkin lymphoma, nasopharyngeal and gastric carcinomas, and primary central nervous system lymphoma (in immunocompromised).
      • Hepatitis B and C viruses (HBV and HCV) causing hepatocellular carcinoma, starting from liver cirrhosis.
      • Human papillomavirus (HPV) causing benign squamous papillomas (warts) and squamous cell carcinomas, primarily in the cervix but also in the vulva, vagina, penis, anus, and oral cavity.
      • Herpes virus (HHV8) causing Kaposi sarcoma.

    Bacterial Carcinogens

    • Some bacteria can also contribute to cancer.
    • Helicobacter pylori causes gastric adenocarcinoma and gastric lymphomas (MALT).

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    Description

    Explore the fascinating link between certain viruses and bacteria with cancer development. This quiz covers RNA and DNA viruses associated with various cancers, as well as bacterial carcinogens like Helicobacter pylori that contribute to gastric cancer. Test your knowledge and understanding of these critical topics in oncology.

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