UNDERSTANDING CANCER
Cancer can be defined as an abnormal growth of cells which tend to proliferate in an uncontrolled way and, in some cases, to metastasize or spread in other parts of the body. It is not one disease but a group of more than 100 different and distinctive diseases.
Cancer can involve any tissue of the body and have many different forms in each body area. Most cancers are named for the type of cell or organ in which they start. If a cancer spreads (metastasizes), the new tumor bears the same name as the original (primary) tumor.
The frequency of a particular cancer may depend on gender. While skin cancer is the most common type of malignancy for both men and women, the second most common type in men is prostate cancer and in women, breast cancer.
Cancer frequency does not equate to cancer mortality. Skin cancers are often curable. Lung cancer is the leading cause of death from cancer for both men and women in the United States today.
Benign tumors are not cancer since it is not active; malignant tumors are cancer. Cancer is NOT contagious.
Cancer is the Latin word for crab. The ancients used the word to mean a malignancy, doubtless because of the crab-like tenacity a malignant tumor sometimes seems to show in grasping the tissues it invades. Cancer may also be called malignancy, a malignant tumor, or a neoplasm (literally, a new growth).
Defining cancer
Cancer is a term used for diseases in which abnormal cells divide without control and are able to invade other tissues. Cancer cells can spread to other parts of the body through the blood and lymph systems.
Cancer is not just one disease but many diseases. There are more than 100 different types of cancer. Most cancers are named for the organ or type of cell in which they start -- for example, cancer that begins in the colon is called colon cancer; cancer that begins in basal cells of the skin is called basal cell carcinoma.
Cancer types can be grouped into broader categories. The main categories of cancer include:
* Carcinoma - cancer that begins in the skin or in tissues that line or cover internal organs.
* Sarcoma - cancer that begins in bone, cartilage, fat, muscle, blood vessels, or other connective or supportive tissue.
* Leukemia - cancer that starts in blood-forming tissue such as the bone marrow and causes large numbers of abnormal blood cells to be produced and enter the blood.
* Lymphoma and myeloma - cancers that begin in the cells of the immune system.
* Central nervous system cancers - cancers that begin in the tissues of the brain and spinal cord.
Origins of cancer
All cancers begin in cells, the body's basic unit of life. To understand cancer, it's helpful to know what happens when normal cells become cancer cells.
The body is made up of many types of cells. These cells grow and divide in a controlled way to produce more cells as they are needed to keep the body healthy. When cells become old or damaged, they die and are replaced with new cells.
However, sometimes this orderly process goes wrong. The genetic material (DNA) of a cell can become damaged or changed, producing mutations that affect normal cell growth and division. When this happens, cells do not die when they should and new cells form when the body does not need them. The extra cells may form a mass of tissue called a tumor.
Cancer statistics
A new report from the nation's leading cancer organizations shows cancer death rates decreased on average 2.1 percent per year from 2002 through 2004, nearly twice the annual decrease of 1.1 percent per year from 1993 through 2002.
Estimated new cases and deaths from cancer in the United States in 2008:
* New cases: 1,437,180 (does not include nonmelanoma skin cancers)
* Deaths: 565,650
What are the most common types of cancer?
The list of common cancer types includes cancers that are diagnosed with the greatest frequency in the United States. Cancer incidence statistics from the American Cancer Society and other resources were used to create the list. To qualify as a common cancer, the estimated annual incidence for 2008 had to be 35,000 cases or more.
The most common type of cancer on the list is nonmelanoma skin cancer, with more than 1,000,000 new cases expected in the United States in 2008. Nonmelanoma skin cancers represent about half of all cancers diagnosed in this country.
The cancer on the list with the lowest incidence is thyroid cancer. The estimated number of new cases of thyroid cancer for 2008 is 37,340.
Because colon and rectal cancers are often referred to as "colorectal cancers," these two cancer types were combined for the list. For 2008, the estimated number of new cases of colon cancer is 108,070, and the estimated number of new cases of rectal cancer is 40,740.
Kidney cancers can be divided into two major groups, renal parenchyma cancers and renal pelvis cancers. Approximately 85 percent of kidney cancers develop in the renal parenchyma, and nearly all of these cancers are renal cell cancers. The estimated number of new cases of renal cell cancer for 2008 is 46,232.
Leukemia as a cancer type includes acute lymphoblastic (or lymphoid) leukemia, chronic lymphocytic leukemia, acute myeloid leukemia, chronic myelogenous (or myeloid) leukemia, and other forms of leukemia. It is estimated that more than 44,270 new cases of leukemia will be diagnosed in the United States in 2008, with chronic lymphocytic leukemia being the most common type (approximately 15,110 new cases).
The following table gives the estimated numbers of new cases and deaths for each common cancer type:
Cancer Type Estimated New Cases Estimated Deaths
Bladder 68,810 14,100
Breast (Female - Male) 182,460 -- 1,990 40,480 - 450
Colon and Rectal (combined) 148,810 49,960
Endometrial 40,100 7,470
Kidney (Renal Cell) 46,232 11,059
Leukemia (all) 44,270 21,710
Lung (including bronchus) 215,020 161,840
Melanoma 62,480 8,420
Non-Hodgkin Lymphoma 66,120 19,160
Pancreatic 37,680 34,290
Prostate 186,320 28,660
Skin (nonmelanoma) >1,000,000 <1,000
Thyroid 37,340 1,590
Source: U.S. National Institutes of Health, National Cancer Institute
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Showing posts with label education. Show all posts
Showing posts with label education. Show all posts
Sunday, March 1, 2009
Saturday, January 31, 2009
reason to watch
I began to come to a realization about the things that are now invading the net and even the pulpit of what lies ahead before us between the year 2008 up to 2015, weighing their importance and relevance on today's series of events like the gruesome global financial crisis which had paralyzed big financial institution and banks making government to be distress and grope for solution to prevent the picture of what we called world wide economic failures, bankruptcy and recession.
The question that shores up today to the christian world with regard to these unwanted progression of events is " are we starting to feel what the Bible says great tribulation, or just the beginning of sorrows?
Today the net are bombarded with issues addressing these concerns, but what really alarms me are the prophetical views of what is going on at present and what will happen in the next few years right in our own time.
preachers and teachers of the Bible speaks of the prophecy written in the pages of this great book are talking about things like great earthquakes, famines, pestilence, distress of nations, the sea waves roaring, the stars will fall from heaven, the sun will be darkened and the moon will turn into blood are some of the things the bible had written with regards to the coming of the end of days and the second advent or coming of the Lord Jesus.
scientist and people with knowledge to the study of time and space as well of the ancient writings of ancient civilizations are astonished with the things they have found out of their researches. according to the Mayan calendar the world will end in December 21, 2012 which they have seen thousand of years before our time, the sumerians in Babylon says the exact date also as well as the chinese, I Ching that points out to the year 2012 as a very significant year. the romans early prophetic writings also share the same prophecy about this point of time. Nostradamus in his writing pronounced this end of days in a cataclysmic scenarios that others regarded and heeded right in our own time by great nations.
NASA is telling the world that the solar system along with the planets orbiting it will pass in the center of the galaxy known as the galactic plane on December of 2012 and at this point of time the great magnetic pull of the galactic plane is somehow making its impact to us litlle by little, this magnetic field in the center of the galaxy is so strong that coming near it or passing through it will have a great effect to the normal cycles and movements of the solar systems and of the planets therefore creating some significant changes in the weather pattern making great storms and intensified hurricanes, abrupt thermal change from severe hotness to freezing coldness to be felt as we approach this galactic plane, great earthquakes that could destroy cities and make mountains to vanished will be the scenarios in the next phase as we pass through it. they even conclude that because of the great pull of the magnetic field, the earth might stop its revolution for several days, and this abrupt stopping can make a really serious cataclysmic scenarios, to explain it plainly imagine a car running for thousand of miles that when sudden brakes and stoppage the car will go rolling up and down to absorbed the energy of the thousnd of miles motion, and that will happen if the earth when passing to the galactic plain will stop.
if the earth will stop its rotation for several days there will be a weather severities which the two face or ends of the earth will experience right at this point of time. the portion of day or exposed to sun will suffer the scorching heat of the sun as the sun flares intensifies also as the effect of this galactic plane, therefore scorching vegetations as well as men that exposed at this moment of time. the other side will experience days of freezing nights without a daylight therefore freezing everything for days even the clouds above. imagine the horror of this time i think these will be very horrible, and who can survive?
as we pass the galactic plane and began to loosen from its magnetic pull the earth will move in its normal rotation as well as the other planet even the sun, therefore there will be nights and day again, but the horror will not still stop because the effect will be felt still as the frozen clouds will be exposed to the heat of the sun and melt they will fall from the sky as big blocks of ice destroying everything where it will fall, survivors will face another problem and that is for food as the event have destroyed the vegetations food will be scarce, and deseases spreading.
i would like you to know also that at this point of time in the year 2012 NASA had warn us us of the planet X approaching the solar system in a fast manner, in 1984 this planet which is actually the 10th planet unknown to us before is being clculated as 54 billlion miles away from us but later in 1999 it was estimated that it was only 7 billion miles near us, the cionclusion that it is coming to us in a fast rate and might pass between the planets this might smashed near planet or the asteroid belt sending meteors and asteroids wildly in every directions even to earth which if happen will create an unimaginable gross destruction in a wide spectrum.
with all this series of what might be events in the years to come, the question still lingers to me and ask why all these early predictions and prophecies as well as all these astrononomical significant are pointing to the same date and that will be on december 2012. are these things just a matter of coincidence, or a perfect plan,designs and calculation of a great master who are in control of everything , is this the hand of God?
for more information and related articles visit;
freewebs.com/arnoldream
The question that shores up today to the christian world with regard to these unwanted progression of events is " are we starting to feel what the Bible says great tribulation, or just the beginning of sorrows?
Today the net are bombarded with issues addressing these concerns, but what really alarms me are the prophetical views of what is going on at present and what will happen in the next few years right in our own time.
preachers and teachers of the Bible speaks of the prophecy written in the pages of this great book are talking about things like great earthquakes, famines, pestilence, distress of nations, the sea waves roaring, the stars will fall from heaven, the sun will be darkened and the moon will turn into blood are some of the things the bible had written with regards to the coming of the end of days and the second advent or coming of the Lord Jesus.
scientist and people with knowledge to the study of time and space as well of the ancient writings of ancient civilizations are astonished with the things they have found out of their researches. according to the Mayan calendar the world will end in December 21, 2012 which they have seen thousand of years before our time, the sumerians in Babylon says the exact date also as well as the chinese, I Ching that points out to the year 2012 as a very significant year. the romans early prophetic writings also share the same prophecy about this point of time. Nostradamus in his writing pronounced this end of days in a cataclysmic scenarios that others regarded and heeded right in our own time by great nations.
NASA is telling the world that the solar system along with the planets orbiting it will pass in the center of the galaxy known as the galactic plane on December of 2012 and at this point of time the great magnetic pull of the galactic plane is somehow making its impact to us litlle by little, this magnetic field in the center of the galaxy is so strong that coming near it or passing through it will have a great effect to the normal cycles and movements of the solar systems and of the planets therefore creating some significant changes in the weather pattern making great storms and intensified hurricanes, abrupt thermal change from severe hotness to freezing coldness to be felt as we approach this galactic plane, great earthquakes that could destroy cities and make mountains to vanished will be the scenarios in the next phase as we pass through it. they even conclude that because of the great pull of the magnetic field, the earth might stop its revolution for several days, and this abrupt stopping can make a really serious cataclysmic scenarios, to explain it plainly imagine a car running for thousand of miles that when sudden brakes and stoppage the car will go rolling up and down to absorbed the energy of the thousnd of miles motion, and that will happen if the earth when passing to the galactic plain will stop.
if the earth will stop its rotation for several days there will be a weather severities which the two face or ends of the earth will experience right at this point of time. the portion of day or exposed to sun will suffer the scorching heat of the sun as the sun flares intensifies also as the effect of this galactic plane, therefore scorching vegetations as well as men that exposed at this moment of time. the other side will experience days of freezing nights without a daylight therefore freezing everything for days even the clouds above. imagine the horror of this time i think these will be very horrible, and who can survive?
as we pass the galactic plane and began to loosen from its magnetic pull the earth will move in its normal rotation as well as the other planet even the sun, therefore there will be nights and day again, but the horror will not still stop because the effect will be felt still as the frozen clouds will be exposed to the heat of the sun and melt they will fall from the sky as big blocks of ice destroying everything where it will fall, survivors will face another problem and that is for food as the event have destroyed the vegetations food will be scarce, and deseases spreading.
i would like you to know also that at this point of time in the year 2012 NASA had warn us us of the planet X approaching the solar system in a fast manner, in 1984 this planet which is actually the 10th planet unknown to us before is being clculated as 54 billlion miles away from us but later in 1999 it was estimated that it was only 7 billion miles near us, the cionclusion that it is coming to us in a fast rate and might pass between the planets this might smashed near planet or the asteroid belt sending meteors and asteroids wildly in every directions even to earth which if happen will create an unimaginable gross destruction in a wide spectrum.
with all this series of what might be events in the years to come, the question still lingers to me and ask why all these early predictions and prophecies as well as all these astrononomical significant are pointing to the same date and that will be on december 2012. are these things just a matter of coincidence, or a perfect plan,designs and calculation of a great master who are in control of everything , is this the hand of God?
for more information and related articles visit;
freewebs.com/arnoldream
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