Big question, honey..... entire classes in physiology and disease are devoted to this subject. Just how much of an explanation do you want? Superficially, cancer cells divide rapidly, and spread, and invade other tissues from which they did not originally develop. Normal cells divide in a regular pattern, keeping the DNA in more or less the same pattern as the parent cell and remain in the organ in which they originate. This is a third grade definition for a science book. Is it enough?
2006-10-26 05:49:58
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answer #1
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answered by April 6
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Cancer cells look very different from normal cells when examined under a microscope. When a biopsy of a tumor is obtained in the operating room , the tissue sample is prepared into a frozen section in the lab and is then examined under the microscope. The results are known as a provisional diagnosis and reported to the awaiting surgeon so that he can procede with the surgery based on whether the frozen section indicated malignancy or not. This provisional test is done in a matter of minutes rather than days. If a tumor has been excised it will be sent to the lab upon completion of the surgery so that it can be examined grossly as well as microscopically. To a trained physician there is usually little difficulty identifying malignant cells from normal cells. Of course there are many factors influencing the appearance of cells including the anatomical source of the tissue specimen, age and sex of patient, type of cancer, presence of invaded blood vessels,etc. The more primitive the cells are, usually the more difficult to treat the cancer. I hope that this information will be of help.
2006-10-26 02:28:06
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answer #2
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answered by marnie 3
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Cancer is an illness in which abnormal cells in organs and tissues in the body grow out of control. These cells grow and increase in prolific numbers over a period of time. Cancer cells invade and destroy the tissue surrounding them.
2006-10-26 02:13:33
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answer #3
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answered by psioni 4
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Cancerous cells are abnormal cells which attack the body rather than aiding it as normal cells do.
2006-10-26 01:45:21
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answer #4
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answered by Anonymous
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The chromatin in malignant cells is clumped appearing and abnormal and many mitoses are present from rapid growth.
2006-10-26 02:59:09
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answer #5
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answered by Anonymous
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Normal cells go; "G'day Mate, How are ya, I'd like to help ya If ya need it
Cancerous cells go: G'day Mate, How are ya, I'd like to help ya If ya need it. HAHAHA, Tricked You, I'm a Politian
2006-10-26 01:59:41
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answer #6
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answered by Anonymous
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