M.D. DEGREE EXAMINATION — APRIL, 2015
RADIOTHERAPY
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PAPER-I : BASIC SCIENCES
Time: 3 Hours Max. Marks:100
Note: Answer all questions
All questions carry equal marks
Draw neat diagrams wherever necessary
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WRITE SHORT ESSAYS ON THE FOLLOWING:
- What are the risk factors for the development of cancer of the endometrium? Write the staging system used for Endometrial cancer.
- Write in brief on Wedges.
- What is meant by sievert? How is it obtained? Write the annual limits of radiation exposure to different population sub-groups, as recommended by the NCRP.
- Thermo-luminescent dosimeters.
- What are the risk factors for the development of Breast cancer? Write the pathological classification of Breast tumours.
- What is meant by Screening for cancer? What are the pre-requisites for Screening? Write a brief note on Prostate specific antigen.
- P value.
- Describe the lymphatic drainage of Tongue. Mention the acute and late effects observed following radical radiation treatment of head and neck cancers.
- Enumerate the different strategies for modifying Radiation response. Write briefly on Amifostine.
- What is meant by isodose curves? What are the factors affecting the isodose distribution?
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