how many types of cancers are there?
151309
CLASSIFICATION OF CANCERS\nCarcinoma: malignant tumors derived from epithelial cells. This group represent the most common cancers, including the common forms of breast, prostate, lung and colon cancer. \nLymphoma and Leukemia: malignant tumors derived from blood and bone marrow cells \nSarcoma: malignant tumors derived from connective tissue, or mesenchymal cells \nMesothelioma: tumors derived from the mesothelial cells lining the peritoneum and the pleura. \nGlioma: tumors derived from brain cells \ngerm cell tumours: tumors derived from germ cells, normally found in the testicle and ovary \nChoriocarcinoma: malignant tumors derived from the placenta
1046696
Depends on what kind of treatment you are referring to, and the type and extent of cancer involved.
105030
This is a complicated issue, so I'll stick to the general points.  Ovarian cancer is classified histologically by tissue type.  The cancer cells can be derived from three main cell lines.  They are either epithelial (made of the cells covering the external ovary), germ cell (made from the actual sex cells in the ovary), or stromal (made from the supporting cells inside the ovary).  There are further subtypes in these three groups.  The list is long, so a more specific internet search might serve you better.  But for another generalization:  epithelial ovarian cancers are the most common, and are more prevalent in adults; germ cell cancers are more prevalent in those under 20 years of age, and stromal tumors can occur in patients of any age.  Besides the primary cancers of the ovary, there is always the possibility of ovarian cancer that has spread from another site (usually somewhere in the abdomen, like the colon or stomach).  These are classified as metastatic ovarian cancers.
1018724
well first let me say that the most common skin cancers are basal cell carcinoma and squamous cell carcinoma, they arise from the basal cell layer of the epidermis or hair follicles; are locally invasive, slow-growing and destructive but very rarely metastasize,,,cancerous skin lesions may appear any place on the body, but the common sites are sun-exposed areas of the body, such as the face, chest, back, ears forearms and back of hands. Initially both forms are painless. Basal cell carcinomas are classified as noduloulcerative lesions, superficial basal cell, and sclerosing basal cell. Squamous cell carcinoma is characterized by a firm, red nodule with visible scales. Both carcinomas often ulcerate and form a crust.
499480
I think the second one.\n\nMany cancers can be prevented thru healthy lifestyle choices.
828473
No as cancers go it is relatively rare
78044
Yes, in theory cancer has existed since the beginning of life. It exists in almost all known species (in one form or another). Cancer, simply put, is when a cell loses its ability to regulate division, and begins dividing (reproducing) uncontrollably. This happens most often due to a genetic mutation in the DNA/RNA of the cell. Mutations can be caused by radiation (including UV rays), toxins in the environment, and many other mutagens.\n\nIt occurs more often in older people because they have usually been exposed to more of these mutagens throughout their lives than younger people. There is also a genetic component – if you inherited genes from your parents that were precursors to cancer, then it takes fewer mutations before getting a cancer cell.\n\nThis is also the most likely explanation for why there are so many different types of cancer today -- people live MUCH longer than they did even 50 years ago, and are therefore exposed to more cancer-causing mutagens in their lifetime. People are also (on average) having children much later in life, which makes it more likely to pass on genes that have more genetic mutations.
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These two common cancers share many of the same risk factors.  Alcohol, folate deficiency, low vitamin and mineral intake, low vitamin D levels and many other risk factors 'co-exist' for these and several other cancers.
463277
Melanoma affects about 55,000 americans at this moment. More people have Melanoma than prostate and colon cancer. So its a pretty common cancer.
142206
1)Gastritis 2)Gastric ulcer3)Carcinoma 4)Sarcoma.
576223
There are several types of bladder cancer, but this should give you some information on it.\n\nBladder cancer is a disease in which malignant (cancer) cells form in the tissues of the bladder.\n\nThe bladder is a hollow organ in the lower part of the abdomen. It is shaped like a small balloon and has a muscular wall that allows it to get larger or smaller. The bladder stores urine until it is passed out of the body. Urine is the liquid waste that is made by the kidneys when they clean the blood. The urine passes from the two kidneys into the bladder through two tubes called ureters. When the bladder is emptied during urination, the urine goes from the bladder to the outside of the body through another tube called the urethra. \n\nThere are three types of bladder cancer that begin in cells in the lining of the bladder. These cancers are named for the type of cells that become malignant (cancerous):\n\nTransitional cell carcinoma: Cancer that begins in cells in the innermost tissue layer of the bladder. These cells are able to stretch when the bladder is full and shrink when it is emptied. Most bladder cancers begin in the transitional cells.\nSquamous cell carcinoma: Cancer that begins in squamous cells, which are thin, flat cells that may form in the bladder after long-term infection or irritation.\nAdenocarcinoma: Cancer that begins in glandular (secretory) cells. Glandular cells in the lining of the bladder make substances such as mucus. \nCancer that is confined to the lining of the bladder is called superficial bladder cancer. Cancer that begins in the transitional cells may spread through the lining of the bladder and invade the muscle wall of the bladder or spread to nearby organs and lymph nodes; this is called invasive bladder cancer.\n\nRefer to the following PDQ summaries for more information:\n\nScreening for Bladder and Other Urothelial Cancers\nUnusual Cancers of Childhood\nSmoking, gender, and diet can affect the risk of developing bladder cancer. \n\nAnything that increases your chance of getting a disease is called a risk factor. Risk factors for bladder cancer include the following: \n\nSmoking. \nBeing exposed to certain substances at work, such as rubber, certain dyes and textiles, paint, and hairdressing supplies. \nA diet high in fried meats and fat. \nBeing older, male, or white.\nHaving an infection caused by a certain parasite.\nPossible signs of bladder cancer include blood in the urine or pain during urination. \n\nThese and other symptoms may be caused by bladder cancer. Other conditions may cause the same symptoms. A doctor should be consulted if any of the following problems occur:\n\nBlood in the urine (slightly rusty to bright red in color). \nFrequent urination, or feeling the need to urinate without being able to do so.\nPain during urination. \nLower back pain. \nTests that examine the urine, vagina, or rectum are used to help detect (find) and diagnose bladder cancer.\n\nThe following tests and procedures may be used:\n\nCT scan (CAT scan): A procedure that makes a series of detailed pictures of areas inside the body, taken from different angles. The pictures are made by a computer linked to an x-ray machine. A dye may be injected into a vein or swallowed to help the organs or tissues show up more clearly. This procedure is also called computed tomography, computerized tomography, or computerized axial tomography.\nUrinalysis: A test to check the color of urine and its contents, such as sugar, protein, blood, and bacteria. \nInternal exam: An exam of the vagina and/or rectum. The doctor inserts gloved fingers into the vagina and/or rectum to feel for lumps. \nIntravenous pyelogram (IVP): A series of x-rays of the kidneys, ureters, and bladder to find out if cancer is present in these organs. A contrast dye is injected into a vein. As the contrast dye moves through the kidneys, ureters, and bladder, x-rays are taken to see if there are any blockages. \nCystoscopy: A procedure to look inside th
688075
Yes there are many ways of screening for cancer, blood tests show some forms of cancer, CT Scans, MIR's Mamagrams, ultrsound.
810910
First of all, cancer is not one disease, but many diseases.\n\nThe best thing we can do is try to prevent it.\n\nHow are you going to eliminate the cancer stem cells?  If you know how, go for it.
783446
certain types of cancerous waste
182204
Cancer is not one disease, but many different diseases with different causes. For that reason, one breakthrough "cure for cancer" is probably not likely to come along.
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There are over 100 cures already available.\n\nhttp://dgwa1.fortunecity.com/body/cancer.html
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There are three main types of oncologists:\na) Oncological surgeon/surgical oncologist.  Specializes in surgical procedures that are cancer related.\nb) Radiation Oncologist.  Specializes in using radiation to treat cancer.\nc) Medical oncologist.  Specializes in using chemo to treat cancer.