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Title: cancer
Description: These notes on the topic cancer explain the whole topic and are complete in it self.these notes make the reader able to amswer all the questions whether they are asked by a P.G.T. teacher or an proffesor these are not standard specific but are for all the standards and all can take benefits from it.
Description: These notes on the topic cancer explain the whole topic and are complete in it self.these notes make the reader able to amswer all the questions whether they are asked by a P.G.T. teacher or an proffesor these are not standard specific but are for all the standards and all can take benefits from it.
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cancer
cancer [the word is derived from Greek karkinos meaning ''crab''] - one of the dreaded
diseaes of man and is a mjor cause of death all over the world
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study of cancer is called oncology[gr
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characteristics of cancer cells:
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[contact inhibition:prevent the uncontrolled growth anddivision of cells
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these cells form a large mass of tissue called tumour*
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types of cancer:
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process of cancer:
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oncogenic theory about development of cancer:
cuses of cancer:
-cancer causing agents are called as carcinogens
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carcinoma:cancer of epithilial tissues eg
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melanoma:cancer of melanocytes of the skin/pigment cells of the skin
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leukemia:cancer of WBC
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adenoma:cancer of glands
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glioma:glial cells of CNS
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carcinomas:are malignant growths of the epithilial tissue that covers or line
body organs
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• leukemias:result from unchecked proliferation of cell types present in blood
and their precursors in the bone marrow
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a scab,sore or ulcer that fails to heal within 3 weeks
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severe recurrent headaches
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persistent hoarseness
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persistent abdominal pain
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blood in urine,with no pain or urination
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lump or change in breast shape
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vaginal bleeding or spotting between periods or after menopause
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in women ,breast cancer is the most common type,followed by the cancer of large
intestine and rectum
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cancer detection:
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cancer treatment
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These drugs exhibit side effect hair loss , anaemia
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Immunotherepy: In this method biological modifiers like a-interferons are used
which activate the immune system and help in destroying the tumour
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A common weed catharanthus roseus is the source of two anticancer drugs,
Vincristine and Vinblastine, used in the treatment of leukamia
Title: cancer
Description: These notes on the topic cancer explain the whole topic and are complete in it self.these notes make the reader able to amswer all the questions whether they are asked by a P.G.T. teacher or an proffesor these are not standard specific but are for all the standards and all can take benefits from it.
Description: These notes on the topic cancer explain the whole topic and are complete in it self.these notes make the reader able to amswer all the questions whether they are asked by a P.G.T. teacher or an proffesor these are not standard specific but are for all the standards and all can take benefits from it.