This is a list of cancer types. Cancer is a group of diseases that involve abnormal increases in the number of types of cancer treatment pdf, with the potential to invade or spread to other parts of the body. There are over 100 different known cancers that affect humans.
Cancers are often described by the body part that they originated in. However, some body parts contain multiple types of tissue, so for greater precision, cancers are additionally classified by the type of cell that the tumor cells originated from. Carcinoma: Cancers derived from epithelial cells. This group includes many of the most common cancers, particularly in older adults.
Nearly all cancers developing in the breast, prostate, lung, pancreas, and colon are carcinomas. Lymphoma and leukemia: These two classes of cancer arise from cells that make blood. However, far more adults develop lymphoma and leukemia. Blastoma: Cancers derived from immature “precursor” cells or embryonic tissue.
Blastomas are more common in children than in older adults. Cancers are usually named using -carcinoma, -sarcoma or -blastoma as a suffix, with the Latin or Greek word for the organ or tissue of origin as the root. For example, cancers of the liver parenchyma arising from malignant epithelial cells is called hepatocarcinoma, while a malignancy arising from primitive liver precursor cells is called a hepatoblastoma, and a cancer arising from fat cells is called a liposarcoma. For some common cancers, the English organ name is used.
For example, the most common type of breast cancer is called ductal carcinoma of the breast. Here, the adjective ductal refers to the appearance of the cancer under the microscope, which suggests that it has originated in the milk ducts. Confusingly, some types of cancer use the -noma suffix, examples including melanoma and seminoma.
Some types of cancer are named for the size and shape of the cells under a microscope, such as giant cell carcinoma, spindle cell carcinoma, and small-cell carcinoma. A cancer source book for nurses.