Neoplasia Questions

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True or false. Be sure to correct wrong answers

1. Increased numbers of sexual partners has been shown to be related to the incidence of breast cancer.

2. A person is rarely genetically predisposed to cancer.

3. A person who has Philadelphia chromosome will have chronic lymphocytic leukemia. This type of cancer is also seen in children with Down's syndrome.

4. A social control gene (suppressor, enhance) may lose its normal function because of age.

5. Most tumors secrete hormones ectopically.

6. Cancer cells are less mobile than normal cells.

7. The metastatic potential of all cancers is based on the size of the tumor. The larger the tumor the greater the chance of metatastic spread.

8. Cancer in children is common.

9. Neuroblastoma is the most common malignancy in children.

10. Immunodeficiencies are not a factor in children with cancer.

11. Familial Polyposis of the Colon is an example of polygenetic cancer transmission.

12. The type of virus that causes cancer is a non-productive virus.

13. Most scientists think that viruses are the major cause of cancer in man.

14. Hormones can act as initiators of carcinogenesis.

15. Cancer cells rarely initiate an immune response.

16. Cervical cancer is common in Japan and uncommon among nuns.

17. The most common site of cancer, which causes death in women, is the breast.

18. The discovery of oncogens only dates back to 1850.

19. In looking at genetic factors associated with cancer, one would say that most cancers are polygenetic.

20. Viruses implicated in cancer are the papaloma virus, the Epstein-Barr virus and the Herpes virus.

21. A tumor usually is undetectable until it doubles 30 times and reaches the
size of 1 cm.

22. Adisarcaoma, Adipoma represents the correct nomenclature for benign and malignant tumors of adipose tissue, respectively.

23. Decreased nuclear size represents general characteristics of cancerous cells.

24. The first two stages in multistage theory of carcinogenesis are proliferation and promotion.

25. The risk of cancer is increased when steroids are used in combination with smoking.

26. Only 30 percentage of children with cancer will be cured.

27. An example of an embryonic tumor is osteosarcoma.

28. Radiation and viruses can be carcinogens or promoters.

29. Tumor suppressor genes are genes that produce proteins that inhibit cellular division and also are normal genes that regulate growth and development.

30. A Frequent site for metastatic cells is the heart.

31 Liver and Kidney cells are examples of liable cells.

32. Malignant cells that becomes lodged in a lymph node may become dormant.

33. An example of paraneoplastic syndrome is tumor necrosis factor.