KOMPAS.com – Cancer is a disease caused by changes (mutations) in the DNA in cells.
There are more than 100 types of cancer and they are usually named after the organ or tissue in which they form. For example, lung cancer starts from the lungs or brain cancer starts from the brain.
In addition, cancer can also be explained based on the type of cells that form it, such as cells epithelium or cell squamous.
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Quoted from the page National Cancer Institutehere are some categories of cancer that start from certain cell types:
carcinoma is the most common type of cancer. They are formed by epithelial cells, which are cells that cover the internal and external surfaces of the body.
There are many types of cells epithelium and carcinoma, starting with the cell type epithelium which are different include:
- Adenocarcinoma, is a cancer that forms in the epithelial cells that produce fluid or mucus. Most occur in breast, colon, and prostate cancer.
- carcinoma sel basalis a cancer that starts in the lower layers or basal (base) epidermis, which is the outer layer of a person’s skin.
- carcinoma sel squamousis a cancer that forms in cells squamous, which are epithelial cells that lie just beneath the outer surface of the skin. These cells also line many other organs, including the stomach, intestines, lungs, bladder, and kidneys.
- carcinoma Transitional cells, are cancers that form within a type of epithelial tissue called transitional epithelium, or urothelium. Several cancers of the bladder, ureter, and kidney are caused transitional cell carcinoma.
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Sarcoma is a cancer that forms in bone and soft tissue, including muscle, fat, blood vessels, lymph vessels, nerves and other tissues fibrous (such as tendons and ligaments).
Osteosarcoma is the most common bone cancer. While the most common type of soft tissue sarcoma is leiomyosarcomaKaposi’s sarcoma, histiocytoma violently fibrous, liposarcomaand protuberans dermatofibrosarcoma.
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Leukemia is a type of cancer that starts in the blood-forming tissue in the bone marrow.
This cancer does not form solid tumors. Instead, large numbers of abnormal white blood cells (leukemic cells and leukemic blast cells) form in the blood and bone marrow, crowding out the normal blood cells.