Cancer i/ˈkænsər/, known medically as a malignant neoplasm, is a broad group of various diseases, all involving unregulated cell growth. In cancer, cells divide and grow uncontrollably, forming malignant tumors, and invade nearby parts of the body. The cancer may also spread to more distant parts of the body through the lymphatic system or bloodstream. Not all tumors are cancerous. Benign tumors do not grow uncontrollably, do not invade neighboring tissues, and do not spread throughout the body. There are over 200 different known cancers that afflict humans.
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Some articles on Cancer:
... Thompson has non-Hodgkin's lymphoma (NHL), a form of cancer ... Thompson's cancer, though currently incurable, is reportedly indolent, the lowest of three grades of NHL ... The cancer is nodal marginal zone lymphoma, a rare form of NHL, that accounts for only one to three percent of all cases ...
... Testicular cancer is cancer that develops in the testicles, a part of the male reproductive system ... In the United States, between 7,500 and 8,000 diagnoses of testicular cancer are made each year ... his lifetime, a man's risk of testicular cancer is roughly 1 in 250 (0.4%) ...
... Because cancer is largely a disease of older adults, it is not common in pregnant women ... Cancer affects approximately 1 in 1,000 pregnant women ... The most common cancers found during pregnancy are the same as the most common cancers found in non-pregnant women during childbearing ages breast cancer, cervical cancer ...
... enzymes has been noted in some types of human cancers, suggesting associations between histone methylation and malignant transformation of cells or formation of tumors ... especially the methylation of the histone H3, in cancer development has been an area of emerging research ... It is now generally accepted that in addition to genetic aberrations, cancer can be initiated by epigenetic changes in which gene expression is altered ...
... uncontrolled study—see clinical trial - unconventional cancer treatments—see experimental cancer treatment - undifferentiated—see cellular differentiation - unilateral salpingo-oophorectomy ...
More definitions of "Cancer":
- (noun): Any malignant growth or tumor caused by abnormal and uncontrolled cell division; it may spread to other parts of the body through the lymphatic system or the blood stream.
Synonyms: malignant neoplastic disease
- (noun): (astrology) a person who is born while the sun is in Cancer.
- (noun): A small zodiacal constellation in the northern hemisphere; between Leo and Gemini.
- (noun): Type genus of the family Cancridae.
Synonyms: genus Cancer
Famous quotes containing the word cancer:
“Ever since I was a kid my folks fed me bigotry for breakfast and ignorance for supper. Never, not once did they ever make me feel proud of where I was born. Thats it. That was a cancer they put in me. No knowledge of my country. No pride. Just a hymn of hate.”
—Samuel Fuller (b. 1911)
“The truth is that Mozart, Pascal, Boolean algebra, Shakespeare, parliamentary government, baroque churches, Newton, the emancipation of women, Kant, Marx, and Balanchine ballets dont redeem what this particular civilization has wrought upon the world. The white race is the cancer of human history.”
—Susan Sontag (b. 1933)
“We need cancer because, by the very fact of its incurability, it makes all other diseases, however virulent, not cancer.”
—Gilbert Adair, British author, critic. Under the Sign of Cancer, Myths and Memories (1986)